28881621

素因数分解:

$3^2\times {\mathrm{59}}^1\times {\mathrm{109}}^1\times {\mathrm{499}}^1$

素因数の和:673

約数の個数: 24

約数和(自身を含む): 42900000

約数和(自身を除く): 14018379

約数列:

[1, 3, 9, 59, 109, 177, 327, 499, 531, 981, 1497, 4491, 6431, 19293, 29441, 54391, 57879, 88323, 163173, 264969, 489519, 3209069, 9627207, 28881621]

約数ペア:

[(1, 28881621), (3, 9627207), (9, 3209069), (59, 489519), (109, 264969), (177, 163173), (327, 88323), (499, 57879), (531, 54391), (981, 29441), (1497, 19293), (4491, 6431)]