81881051

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{7793}}^1$

素因数の和:7898

約数の個数: 16

約数和(自身を含む): 99763200

約数和(自身を除く): 17882149

約数列:

[1, 7, 19, 79, 133, 553, 1501, 7793, 10507, 54551, 148067, 615647, 1036469, 4309529, 11697293, 81881051]

約数ペア:

[(1, 81881051), (7, 11697293), (19, 4309529), (79, 1036469), (133, 615647), (553, 148067), (1501, 54551), (7793, 10507)]