21579959240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{1055771}}^1$

素因数の和:1055862

約数の個数: 64

約数和(自身を含む): 56251532160

約数和(自身を除く): 34671572920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 73, 140, 146, 280, 292, 365, 511, 584, 730, 1022, 1460, 2044, 2555, 2920, 4088, 5110, 10220, 20440, 1055771, 2111542, 4223084, 5278855, 7390397, 8446168, 10557710, 14780794, 21115420, 29561588, 36951985, 42230840, 59123176, 73903970, 77071283, 147807940, 154142566, 295615880, 308285132, 385356415, 539498981, 616570264, 770712830, 1078997962, 1541425660, 2157995924, 2697494905, 3082851320, 4315991848, 5394989810, 10789979620, 21579959240]

約数ペア:

[(1, 21579959240), (2, 10789979620), (4, 5394989810), (5, 4315991848), (7, 3082851320), (8, 2697494905), (10, 2157995924), (14, 1541425660), (20, 1078997962), (28, 770712830), (35, 616570264), (40, 539498981), (56, 385356415), (70, 308285132), (73, 295615880), (140, 154142566), (146, 147807940), (280, 77071283), (292, 73903970), (365, 59123176), (511, 42230840), (584, 36951985), (730, 29561588), (1022, 21115420), (1460, 14780794), (2044, 10557710), (2555, 8446168), (2920, 7390397), (4088, 5278855), (5110, 4223084), (10220, 2111542), (20440, 1055771)]