18313953

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^2\times {\mathrm{173}}^1$

素因数の和:325

約数の個数: 24

約数和(自身を含む): 28469184

約数和(自身を除く): 10155231

約数列:

[1, 3, 7, 21, 71, 173, 213, 497, 519, 1211, 1491, 3633, 5041, 12283, 15123, 35287, 36849, 85981, 105861, 257943, 872093, 2616279, 6104651, 18313953]

約数ペア:

[(1, 18313953), (3, 6104651), (7, 2616279), (21, 872093), (71, 257943), (173, 105861), (213, 85981), (497, 36849), (519, 35287), (1211, 15123), (1491, 12283), (3633, 5041)]