21000643212

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{331}}^1$

素因数の和:548

約数の個数: 192

約数和(自身を含む): 53887647744

約数和(自身を除く): 32887004532

約数列:

[1, 2, 3, 4, 6, 12, 23, 46, 47, 67, 69, 73, 92, 94, 134, 138, 141, 146, 188, 201, 219, 268, 276, 282, 292, 331, 402, 438, 564, 662, 804, 876, 993, 1081, 1324, 1541, 1679, 1986, 2162, 3082, 3149, 3243, 3358, 3431, 3972, 4324, 4623, 4891, 5037, 6164, 6298, 6486, 6716, 6862, 7613, 9246, 9447, 9782, 10074, 10293, 12596, 12972, 13724, 14673, 15226, 15557, 18492, 18894, 19564, 20148, 20586, 22177, 22839, 24163, 29346, 30452, 31114, 37788, 41172, 44354, 45678, 46671, 48326, 58692, 62228, 66531, 72427, 72489, 78913, 88708, 91356, 93342, 96652, 112493, 133062, 144854, 144978, 157826, 186684, 217281, 224986, 229877, 236739, 266124, 289708, 289956, 315652, 337479, 357811, 434562, 449972, 459754, 473478, 510071, 555749, 674958, 689631, 715622, 869124, 919508, 946956, 1020142, 1042319, 1073433, 1111498, 1135661, 1349916, 1379262, 1431244, 1530213, 1618921, 1667247, 2040284, 2084638, 2146866, 2222996, 2271322, 2758524, 3060426, 3126957, 3237842, 3334494, 3406983, 4169276, 4293732, 4542644, 4856763, 5287171, 6120852, 6253914, 6475684, 6668988, 6813966, 9713526, 10574342, 12507828, 13627932, 15861513, 19427052, 21148684, 23973337, 26120203, 31723026, 37235183, 47946674, 52240406, 63446052, 71920011, 74470366, 76089287, 78360609, 95893348, 104480812, 111705549, 143840022, 148940732, 152178574, 156721218, 223411098, 228267861, 287680044, 304357148, 313442436, 446822196, 456535722, 913071444, 1750053601, 3500107202, 5250160803, 7000214404, 10500321606, 21000643212]

約数ペア:

[(1, 21000643212), (2, 10500321606), (3, 7000214404), (4, 5250160803), (6, 3500107202), (12, 1750053601), (23, 913071444), (46, 456535722), (47, 446822196), (67, 313442436), (69, 304357148), (73, 287680044), (92, 228267861), (94, 223411098), (134, 156721218), (138, 152178574), (141, 148940732), (146, 143840022), (188, 111705549), (201, 104480812), (219, 95893348), (268, 78360609), (276, 76089287), (282, 74470366), (292, 71920011), (331, 63446052), (402, 52240406), (438, 47946674), (564, 37235183), (662, 31723026), (804, 26120203), (876, 23973337), (993, 21148684), (1081, 19427052), (1324, 15861513), (1541, 13627932), (1679, 12507828), (1986, 10574342), (2162, 9713526), (3082, 6813966), (3149, 6668988), (3243, 6475684), (3358, 6253914), (3431, 6120852), (3972, 5287171), (4324, 4856763), (4623, 4542644), (4891, 4293732), (5037, 4169276), (6164, 3406983), (6298, 3334494), (6486, 3237842), (6716, 3126957), (6862, 3060426), (7613, 2758524), (9246, 2271322), (9447, 2222996), (9782, 2146866), (10074, 2084638), (10293, 2040284), (12596, 1667247), (12972, 1618921), (13724, 1530213), (14673, 1431244), (15226, 1379262), (15557, 1349916), (18492, 1135661), (18894, 1111498), (19564, 1073433), (20148, 1042319), (20586, 1020142), (22177, 946956), (22839, 919508), (24163, 869124), (29346, 715622), (30452, 689631), (31114, 674958), (37788, 555749), (41172, 510071), (44354, 473478), (45678, 459754), (46671, 449972), (48326, 434562), (58692, 357811), (62228, 337479), (66531, 315652), (72427, 289956), (72489, 289708), (78913, 266124), (88708, 236739), (91356, 229877), (93342, 224986), (96652, 217281), (112493, 186684), (133062, 157826), (144854, 144978)]