121720991

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{5953}}^1$

素因数の和:6110

約数の個数: 16

約数和(自身を含む): 146325504

約数和(自身を除く): 24604513

約数列:

[1, 7, 23, 127, 161, 889, 2921, 5953, 20447, 41671, 136919, 756031, 958433, 5292217, 17388713, 121720991]

約数ペア:

[(1, 121720991), (7, 17388713), (23, 5292217), (127, 958433), (161, 756031), (889, 136919), (2921, 41671), (5953, 20447)]