21685851

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{4133}}^1$

素因数の和:4203

約数の個数: 24

約数和(自身を含む): 34824816

約数和(自身を除く): 13138965

約数列:

[1, 3, 9, 11, 33, 53, 99, 159, 477, 583, 1749, 4133, 5247, 12399, 37197, 45463, 136389, 219049, 409167, 657147, 1971441, 2409539, 7228617, 21685851]

約数ペア:

[(1, 21685851), (3, 7228617), (9, 2409539), (11, 1971441), (33, 657147), (53, 409167), (99, 219049), (159, 136389), (477, 45463), (583, 37197), (1749, 12399), (4133, 5247)]