21891480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{14033}}^1$

素因数の和:14060

約数の個数: 64

約数和(自身を含む): 70731360

約数和(自身を除く): 48839880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 14033, 28066, 42099, 56132, 70165, 84198, 112264, 140330, 168396, 182429, 210495, 280660, 336792, 364858, 420990, 547287, 561320, 729716, 841980, 912145, 1094574, 1459432, 1683960, 1824290, 2189148, 2736435, 3648580, 4378296, 5472870, 7297160, 10945740, 21891480]

約数ペア:

[(1, 21891480), (2, 10945740), (3, 7297160), (4, 5472870), (5, 4378296), (6, 3648580), (8, 2736435), (10, 2189148), (12, 1824290), (13, 1683960), (15, 1459432), (20, 1094574), (24, 912145), (26, 841980), (30, 729716), (39, 561320), (40, 547287), (52, 420990), (60, 364858), (65, 336792), (78, 280660), (104, 210495), (120, 182429), (130, 168396), (156, 140330), (195, 112264), (260, 84198), (312, 70165), (390, 56132), (520, 42099), (780, 28066), (1560, 14033)]