207980721

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{61297}}^1$

素因数の和:61345

約数の個数: 24

約数和(自身を含む): 334687080

約数和(自身を除く): 126706359

約数列:

[1, 3, 9, 13, 29, 39, 87, 117, 261, 377, 1131, 3393, 61297, 183891, 551673, 796861, 1777613, 2390583, 5332839, 7171749, 15998517, 23108969, 69326907, 207980721]

約数ペア:

[(1, 207980721), (3, 69326907), (9, 23108969), (13, 15998517), (29, 7171749), (39, 5332839), (87, 2390583), (117, 1777613), (261, 796861), (377, 551673), (1131, 183891), (3393, 61297)]