39890557

素因数分解:

$7^3\times {\mathrm{19}}^1\times {\mathrm{6121}}^1$

素因数の和:6161

約数の個数: 16

約数和(自身を含む): 48976000

約数和(自身を除く): 9085443

約数列:

[1, 7, 19, 49, 133, 343, 931, 6121, 6517, 42847, 116299, 299929, 814093, 2099503, 5698651, 39890557]

約数ペア:

[(1, 39890557), (7, 5698651), (19, 2099503), (49, 814093), (133, 299929), (343, 116299), (931, 42847), (6121, 6517)]