21788130

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{347}}^1$

素因数の和:400

約数の個数: 128

約数和(自身を含む): 67350528

約数和(自身を除く): 45562398

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 23, 26, 30, 35, 39, 42, 46, 65, 69, 70, 78, 91, 105, 115, 130, 138, 161, 182, 195, 210, 230, 273, 299, 322, 345, 347, 390, 455, 483, 546, 598, 690, 694, 805, 897, 910, 966, 1041, 1365, 1495, 1610, 1735, 1794, 2082, 2093, 2415, 2429, 2730, 2990, 3470, 4186, 4485, 4511, 4830, 4858, 5205, 6279, 7287, 7981, 8970, 9022, 10410, 10465, 12145, 12558, 13533, 14574, 15962, 20930, 22555, 23943, 24290, 27066, 31395, 31577, 36435, 39905, 45110, 47886, 55867, 62790, 63154, 67665, 72870, 79810, 94731, 103753, 111734, 119715, 135330, 157885, 167601, 189462, 207506, 239430, 279335, 311259, 315770, 335202, 473655, 518765, 558670, 622518, 726271, 838005, 947310, 1037530, 1452542, 1556295, 1676010, 2178813, 3112590, 3631355, 4357626, 7262710, 10894065, 21788130]

約数ペア:

[(1, 21788130), (2, 10894065), (3, 7262710), (5, 4357626), (6, 3631355), (7, 3112590), (10, 2178813), (13, 1676010), (14, 1556295), (15, 1452542), (21, 1037530), (23, 947310), (26, 838005), (30, 726271), (35, 622518), (39, 558670), (42, 518765), (46, 473655), (65, 335202), (69, 315770), (70, 311259), (78, 279335), (91, 239430), (105, 207506), (115, 189462), (130, 167601), (138, 157885), (161, 135330), (182, 119715), (195, 111734), (210, 103753), (230, 94731), (273, 79810), (299, 72870), (322, 67665), (345, 63154), (347, 62790), (390, 55867), (455, 47886), (483, 45110), (546, 39905), (598, 36435), (690, 31577), (694, 31395), (805, 27066), (897, 24290), (910, 23943), (966, 22555), (1041, 20930), (1365, 15962), (1495, 14574), (1610, 13533), (1735, 12558), (1794, 12145), (2082, 10465), (2093, 10410), (2415, 9022), (2429, 8970), (2730, 7981), (2990, 7287), (3470, 6279), (4186, 5205), (4485, 4858), (4511, 4830)]