21506550

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{269}}^1$

素因数の和:338

約数の個数: 96

約数和(自身を含む): 59058720

約数和(自身を除く): 37552170

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 41, 50, 65, 75, 78, 82, 123, 130, 150, 195, 205, 246, 269, 325, 390, 410, 533, 538, 615, 650, 807, 975, 1025, 1066, 1230, 1345, 1599, 1614, 1950, 2050, 2665, 2690, 3075, 3198, 3497, 4035, 5330, 6150, 6725, 6994, 7995, 8070, 10491, 11029, 13325, 13450, 15990, 17485, 20175, 20982, 22058, 26650, 33087, 34970, 39975, 40350, 52455, 55145, 66174, 79950, 87425, 104910, 110290, 143377, 165435, 174850, 262275, 275725, 286754, 330870, 430131, 524550, 551450, 716885, 827175, 860262, 1433770, 1654350, 2150655, 3584425, 4301310, 7168850, 10753275, 21506550]

約数ペア:

[(1, 21506550), (2, 10753275), (3, 7168850), (5, 4301310), (6, 3584425), (10, 2150655), (13, 1654350), (15, 1433770), (25, 860262), (26, 827175), (30, 716885), (39, 551450), (41, 524550), (50, 430131), (65, 330870), (75, 286754), (78, 275725), (82, 262275), (123, 174850), (130, 165435), (150, 143377), (195, 110290), (205, 104910), (246, 87425), (269, 79950), (325, 66174), (390, 55145), (410, 52455), (533, 40350), (538, 39975), (615, 34970), (650, 33087), (807, 26650), (975, 22058), (1025, 20982), (1066, 20175), (1230, 17485), (1345, 15990), (1599, 13450), (1614, 13325), (1950, 11029), (2050, 10491), (2665, 8070), (2690, 7995), (3075, 6994), (3198, 6725), (3497, 6150), (4035, 5330)]