21414900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1$

素因数の和:83

約数の個数: 216

約数和(自身を含む): 74613280

約数和(自身を除く): 53198380

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 17, 19, 20, 25, 26, 30, 34, 38, 39, 50, 51, 52, 57, 60, 65, 68, 75, 76, 78, 85, 95, 100, 102, 114, 130, 150, 156, 170, 190, 195, 204, 221, 228, 247, 255, 260, 285, 289, 300, 323, 325, 340, 380, 390, 425, 442, 475, 494, 510, 570, 578, 646, 650, 663, 741, 780, 850, 867, 884, 950, 969, 975, 988, 1020, 1105, 1140, 1156, 1235, 1275, 1292, 1300, 1326, 1425, 1445, 1482, 1615, 1700, 1734, 1900, 1938, 1950, 2210, 2470, 2550, 2652, 2850, 2890, 2964, 3230, 3315, 3468, 3705, 3757, 3876, 3900, 4199, 4335, 4420, 4845, 4940, 5100, 5491, 5525, 5700, 5780, 6175, 6460, 6630, 7225, 7410, 7514, 8075, 8398, 8670, 9690, 10982, 11050, 11271, 12350, 12597, 13260, 14450, 14820, 15028, 16150, 16473, 16575, 16796, 17340, 18525, 18785, 19380, 20995, 21675, 21964, 22100, 22542, 24225, 24700, 25194, 27455, 28900, 32300, 32946, 33150, 37050, 37570, 41990, 43350, 45084, 48450, 50388, 54910, 56355, 62985, 65892, 66300, 71383, 74100, 75140, 82365, 83980, 86700, 93925, 96900, 104975, 109820, 112710, 125970, 137275, 142766, 164730, 187850, 209950, 214149, 225420, 251940, 274550, 281775, 285532, 314925, 329460, 356915, 375700, 411825, 419900, 428298, 549100, 563550, 629850, 713830, 823650, 856596, 1070745, 1127100, 1259700, 1427660, 1647300, 1784575, 2141490, 3569150, 4282980, 5353725, 7138300, 10707450, 21414900]

約数ペア:

[(1, 21414900), (2, 10707450), (3, 7138300), (4, 5353725), (5, 4282980), (6, 3569150), (10, 2141490), (12, 1784575), (13, 1647300), (15, 1427660), (17, 1259700), (19, 1127100), (20, 1070745), (25, 856596), (26, 823650), (30, 713830), (34, 629850), (38, 563550), (39, 549100), (50, 428298), (51, 419900), (52, 411825), (57, 375700), (60, 356915), (65, 329460), (68, 314925), (75, 285532), (76, 281775), (78, 274550), (85, 251940), (95, 225420), (100, 214149), (102, 209950), (114, 187850), (130, 164730), (150, 142766), (156, 137275), (170, 125970), (190, 112710), (195, 109820), (204, 104975), (221, 96900), (228, 93925), (247, 86700), (255, 83980), (260, 82365), (285, 75140), (289, 74100), (300, 71383), (323, 66300), (325, 65892), (340, 62985), (380, 56355), (390, 54910), (425, 50388), (442, 48450), (475, 45084), (494, 43350), (510, 41990), (570, 37570), (578, 37050), (646, 33150), (650, 32946), (663, 32300), (741, 28900), (780, 27455), (850, 25194), (867, 24700), (884, 24225), (950, 22542), (969, 22100), (975, 21964), (988, 21675), (1020, 20995), (1105, 19380), (1140, 18785), (1156, 18525), (1235, 17340), (1275, 16796), (1292, 16575), (1300, 16473), (1326, 16150), (1425, 15028), (1445, 14820), (1482, 14450), (1615, 13260), (1700, 12597), (1734, 12350), (1900, 11271), (1938, 11050), (1950, 10982), (2210, 9690), (2470, 8670), (2550, 8398), (2652, 8075), (2850, 7514), (2890, 7410), (2964, 7225), (3230, 6630), (3315, 6460), (3468, 6175), (3705, 5780), (3757, 5700), (3876, 5525), (3900, 5491), (4199, 5100), (4335, 4940), (4420, 4845)]