31409973

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{409}}^1$

素因数の和:498

約数の個数: 48

約数和(自身を含む): 55261440

約数和(自身を除く): 23851467

約数列:

[1, 3, 7, 9, 21, 23, 53, 63, 69, 159, 161, 207, 371, 409, 477, 483, 1113, 1219, 1227, 1449, 2863, 3339, 3657, 3681, 8533, 8589, 9407, 10971, 21677, 25599, 25767, 28221, 65031, 65849, 76797, 84663, 151739, 195093, 197547, 455217, 498571, 592641, 1365651, 1495713, 3489997, 4487139, 10469991, 31409973]

約数ペア:

[(1, 31409973), (3, 10469991), (7, 4487139), (9, 3489997), (21, 1495713), (23, 1365651), (53, 592641), (63, 498571), (69, 455217), (159, 197547), (161, 195093), (207, 151739), (371, 84663), (409, 76797), (477, 65849), (483, 65031), (1113, 28221), (1219, 25767), (1227, 25599), (1449, 21677), (2863, 10971), (3339, 9407), (3657, 8589), (3681, 8533)]