2157788171

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1218401}}^1$

素因数の和:1218442

約数の個数: 16

約数和(自身を含む): 2807198208

約数和(自身を除く): 649410037

約数列:

[1, 7, 11, 23, 77, 161, 253, 1771, 1218401, 8528807, 13402411, 28023223, 93816877, 196162561, 308255453, 2157788171]

約数ペア:

[(1, 2157788171), (7, 308255453), (11, 196162561), (23, 93816877), (77, 28023223), (161, 13402411), (253, 8528807), (1771, 1218401)]