123142957

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{173}}^1\times {\mathrm{1667}}^1$

素因数の和:1908

約数の個数: 16

約数和(自身を含む): 143955072

約数和(自身を除く): 20812115

約数列:

[1, 7, 61, 173, 427, 1211, 1667, 10553, 11669, 73871, 101687, 288391, 711809, 2018737, 17591851, 123142957]

約数ペア:

[(1, 123142957), (7, 17591851), (61, 2018737), (173, 711809), (427, 288391), (1211, 101687), (1667, 73871), (10553, 11669)]