21715210

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{1747}}^1$

素因数の和:1878

約数の個数: 32

約数和(自身を含む): 43042752

約数和(自身を除く): 21327542

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 113, 226, 565, 1130, 1243, 1747, 2486, 3494, 6215, 8735, 12430, 17470, 19217, 38434, 96085, 192170, 197411, 394822, 987055, 1974110, 2171521, 4343042, 10857605, 21715210]

約数ペア:

[(1, 21715210), (2, 10857605), (5, 4343042), (10, 2171521), (11, 1974110), (22, 987055), (55, 394822), (110, 197411), (113, 192170), (226, 96085), (565, 38434), (1130, 19217), (1243, 17470), (1747, 12430), (2486, 8735), (3494, 6215)]