15221975

素因数分解:

$5^2\times {\mathrm{23}}^2\times {\mathrm{1151}}^1$

素因数の和:1207

約数の個数: 18

約数和(自身を含む): 19748736

約数和(自身を除く): 4526761

約数列:

[1, 5, 23, 25, 115, 529, 575, 1151, 2645, 5755, 13225, 26473, 28775, 132365, 608879, 661825, 3044395, 15221975]

約数ペア:

[(1, 15221975), (5, 3044395), (23, 661825), (25, 608879), (115, 132365), (529, 28775), (575, 26473), (1151, 13225), (2645, 5755)]