21796724

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{4861}}^1$

素因数の和:4943

約数の個数: 24

約数和(自身を含む): 40840800

約数和(自身を除く): 19044076

約数列:

[1, 2, 4, 19, 38, 59, 76, 118, 236, 1121, 2242, 4484, 4861, 9722, 19444, 92359, 184718, 286799, 369436, 573598, 1147196, 5449181, 10898362, 21796724]

約数ペア:

[(1, 21796724), (2, 10898362), (4, 5449181), (19, 1147196), (38, 573598), (59, 369436), (76, 286799), (118, 184718), (236, 92359), (1121, 19444), (2242, 9722), (4484, 4861)]