21000422725

素因数分解:

$5^2\times {\mathrm{61}}^1\times {\mathrm{311}}^1\times {\mathrm{44279}}^1$

素因数の和:44661

約数の個数: 24

約数和(自身を含む): 26553121920

約数和(自身を除く): 5552699195

約数列:

[1, 5, 25, 61, 305, 311, 1525, 1555, 7775, 18971, 44279, 94855, 221395, 474275, 1106975, 2701019, 13505095, 13770769, 67525475, 68853845, 344269225, 840016909, 4200084545, 21000422725]

約数ペア:

[(1, 21000422725), (5, 4200084545), (25, 840016909), (61, 344269225), (305, 68853845), (311, 67525475), (1525, 13770769), (1555, 13505095), (7775, 2701019), (18971, 1106975), (44279, 474275), (94855, 221395)]