20382723

素因数分解:

$3^2\times {\mathrm{61}}^1\times {\mathrm{137}}^1\times {\mathrm{271}}^1$

素因数の和:475

約数の個数: 24

約数和(自身を含む): 30254016

約数和(自身を除く): 9871293

約数列:

[1, 3, 9, 61, 137, 183, 271, 411, 549, 813, 1233, 2439, 8357, 16531, 25071, 37127, 49593, 75213, 111381, 148779, 334143, 2264747, 6794241, 20382723]

約数ペア:

[(1, 20382723), (3, 6794241), (9, 2264747), (61, 334143), (137, 148779), (183, 111381), (271, 75213), (411, 49593), (549, 37127), (813, 25071), (1233, 16531), (2439, 8357)]