20390653

素因数分解:

${\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{263}}^1$

素因数の和:396

約数の個数: 16

約数和(自身を含む): 21998592

約数和(自身を除く): 1607939

約数列:

[1, 31, 41, 61, 263, 1271, 1891, 2501, 8153, 10783, 16043, 77531, 334273, 497333, 657763, 20390653]

約数ペア:

[(1, 20390653), (31, 657763), (41, 497333), (61, 334273), (263, 77531), (1271, 16043), (1891, 10783), (2501, 8153)]