20415663

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{907}}^1$

素因数の和:1015

約数の個数: 24

約数和(自身を含む): 30737616

約数和(自身を除く): 10321953

約数列:

[1, 3, 9, 41, 61, 123, 183, 369, 549, 907, 2501, 2721, 7503, 8163, 22509, 37187, 55327, 111561, 165981, 334683, 497943, 2268407, 6805221, 20415663]

約数ペア:

[(1, 20415663), (3, 6805221), (9, 2268407), (41, 497943), (61, 334683), (123, 165981), (183, 111561), (369, 55327), (549, 37187), (907, 22509), (2501, 8163), (2721, 7503)]