18240173

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{277}}^1\times {\mathrm{409}}^1$

素因数の和:716

約数の個数: 16

約数和(自身を含む): 21884160

約数和(自身を除く): 3643987

約数列:

[1, 7, 23, 161, 277, 409, 1939, 2863, 6371, 9407, 44597, 65849, 113293, 793051, 2605739, 18240173]

約数ペア:

[(1, 18240173), (7, 2605739), (23, 793051), (161, 113293), (277, 65849), (409, 44597), (1939, 9407), (2863, 6371)]