21720634

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{7393}}^1$

素因数の和:7521

約数の個数: 16

約数和(自身を含む): 35402472

約数和(自身を除く): 13681838

約数列:

[1, 2, 13, 26, 113, 226, 1469, 2938, 7393, 14786, 96109, 192218, 835409, 1670818, 10860317, 21720634]

約数ペア:

[(1, 21720634), (2, 10860317), (13, 1670818), (26, 835409), (113, 192218), (226, 96109), (1469, 14786), (2938, 7393)]