21869575

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{9613}}^1$

素因数の和:9643

約数の個数: 24

約数和(自身を含む): 33379808

約数和(自身を除く): 11510233

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 175, 325, 455, 2275, 9613, 48065, 67291, 124969, 240325, 336455, 624845, 874783, 1682275, 3124225, 4373915, 21869575]

約数ペア:

[(1, 21869575), (5, 4373915), (7, 3124225), (13, 1682275), (25, 874783), (35, 624845), (65, 336455), (91, 240325), (175, 124969), (325, 67291), (455, 48065), (2275, 9613)]