21290924

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{1667}}^1$

素因数の和:1805

約数の個数: 24

約数和(自身を含む): 38857728

約数和(自身を除く): 17566804

約数列:

[1, 2, 4, 31, 62, 103, 124, 206, 412, 1667, 3193, 3334, 6386, 6668, 12772, 51677, 103354, 171701, 206708, 343402, 686804, 5322731, 10645462, 21290924]

約数ペア:

[(1, 21290924), (2, 10645462), (4, 5322731), (31, 686804), (62, 343402), (103, 206708), (124, 171701), (206, 103354), (412, 51677), (1667, 12772), (3193, 6668), (3334, 6386)]