71821981

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{11807}}^1$

素因数の和:11904

約数の個数: 16

約数和(自身を含む): 90685440

約数和(自身を除く): 18863459

約数列:

[1, 7, 11, 77, 79, 553, 869, 6083, 11807, 82649, 129877, 909139, 932753, 6529271, 10260283, 71821981]

約数ペア:

[(1, 71821981), (7, 10260283), (11, 6529271), (77, 932753), (79, 909139), (553, 129877), (869, 82649), (6083, 11807)]