21913825

素因数分解:

$5^2\times {\mathrm{23}}^2\times {\mathrm{1657}}^1$

素因数の和:1713

約数の個数: 18

約数和(自身を含む): 28423094

約数和(自身を除く): 6509269

約数列:

[1, 5, 23, 25, 115, 529, 575, 1657, 2645, 8285, 13225, 38111, 41425, 190555, 876553, 952775, 4382765, 21913825]

約数ペア:

[(1, 21913825), (5, 4382765), (23, 952775), (25, 876553), (115, 190555), (529, 41425), (575, 38111), (1657, 13225), (2645, 8285)]