21540086

素因数分解:

$2^1\times {\mathrm{157}}^1\times {\mathrm{181}}^1\times {\mathrm{379}}^1$

素因数の和:719

約数の個数: 16

約数和(自身を含む): 32781840

約数和(自身を除く): 11241754

約数列:

[1, 2, 157, 181, 314, 362, 379, 758, 28417, 56834, 59503, 68599, 119006, 137198, 10770043, 21540086]

約数ペア:

[(1, 21540086), (2, 10770043), (157, 137198), (181, 119006), (314, 68599), (362, 59503), (379, 56834), (758, 28417)]