21588615

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{233}}^1$

素因数の和:344

約数の個数: 48

約数和(自身を含む): 39424320

約数和(自身を除く): 17835705

約数列:

[1, 3, 5, 9, 15, 29, 45, 71, 87, 145, 213, 233, 261, 355, 435, 639, 699, 1065, 1165, 1305, 2059, 2097, 3195, 3495, 6177, 6757, 10295, 10485, 16543, 18531, 20271, 30885, 33785, 49629, 60813, 82715, 92655, 101355, 148887, 248145, 304065, 479747, 744435, 1439241, 2398735, 4317723, 7196205, 21588615]

約数ペア:

[(1, 21588615), (3, 7196205), (5, 4317723), (9, 2398735), (15, 1439241), (29, 744435), (45, 479747), (71, 304065), (87, 248145), (145, 148887), (213, 101355), (233, 92655), (261, 82715), (355, 60813), (435, 49629), (639, 33785), (699, 30885), (1065, 20271), (1165, 18531), (1305, 16543), (2059, 10485), (2097, 10295), (3195, 6757), (3495, 6177)]