21089276

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{8629}}^1$

素因数の和:8693

約数の個数: 24

約数和(自身を含む): 40595520

約数和(自身を除く): 19506244

約数列:

[1, 2, 4, 13, 26, 47, 52, 94, 188, 611, 1222, 2444, 8629, 17258, 34516, 112177, 224354, 405563, 448708, 811126, 1622252, 5272319, 10544638, 21089276]

約数ペア:

[(1, 21089276), (2, 10544638), (4, 5272319), (13, 1622252), (26, 811126), (47, 448708), (52, 405563), (94, 224354), (188, 112177), (611, 34516), (1222, 17258), (2444, 8629)]