21907292

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{45263}}^1$

素因数の和:45289

約数の個数: 18

約数和(自身を含む): 42140784

約数和(自身を除く): 20233492

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 45263, 90526, 181052, 497893, 995786, 1991572, 5476823, 10953646, 21907292]

約数ペア:

[(1, 21907292), (2, 10953646), (4, 5476823), (11, 1991572), (22, 995786), (44, 497893), (121, 181052), (242, 90526), (484, 45263)]