21213490

素因数分解:

$2^1\times 5^1\times {\mathrm{113}}^1\times {\mathrm{18773}}^1$

素因数の和:18893

約数の個数: 16

約数和(自身を含む): 38524248

約数和(自身を除く): 17310758

約数列:

[1, 2, 5, 10, 113, 226, 565, 1130, 18773, 37546, 93865, 187730, 2121349, 4242698, 10606745, 21213490]

約数ペア:

[(1, 21213490), (2, 10606745), (5, 4242698), (10, 2121349), (113, 187730), (226, 93865), (565, 37546), (1130, 18773)]