20210257970

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{1103}}^1\times {\mathrm{261757}}^1$

素因数の和:262874

約数の個数: 32

約数和(自身を含む): 41613239808

約数和(自身を除く): 21402981838

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 1103, 2206, 5515, 7721, 11030, 15442, 38605, 77210, 261757, 523514, 1308785, 1832299, 2617570, 3664598, 9161495, 18322990, 288717971, 577435942, 1443589855, 2021025797, 2887179710, 4042051594, 10105128985, 20210257970]

約数ペア:

[(1, 20210257970), (2, 10105128985), (5, 4042051594), (7, 2887179710), (10, 2021025797), (14, 1443589855), (35, 577435942), (70, 288717971), (1103, 18322990), (2206, 9161495), (5515, 3664598), (7721, 2617570), (11030, 1832299), (15442, 1308785), (38605, 523514), (77210, 261757)]