21622575

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{331}}^1$

素因数の和:424

約数の個数: 48

約数和(自身を含む): 39191936

約数和(自身を除く): 17569361

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 67, 75, 195, 201, 325, 331, 335, 871, 975, 993, 1005, 1655, 1675, 2613, 4303, 4355, 4965, 5025, 8275, 12909, 13065, 21515, 21775, 22177, 24825, 64545, 65325, 66531, 107575, 110885, 288301, 322725, 332655, 554425, 864903, 1441505, 1663275, 4324515, 7207525, 21622575]

約数ペア:

[(1, 21622575), (3, 7207525), (5, 4324515), (13, 1663275), (15, 1441505), (25, 864903), (39, 554425), (65, 332655), (67, 322725), (75, 288301), (195, 110885), (201, 107575), (325, 66531), (331, 65325), (335, 64545), (871, 24825), (975, 22177), (993, 21775), (1005, 21515), (1655, 13065), (1675, 12909), (2613, 8275), (4303, 5025), (4355, 4965)]