18757178

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{77509}}^1$

素因数の和:77533

約数の個数: 12

約数和(自身を含む): 30926490

約数和(自身を除く): 12169312

約数列:

[1, 2, 11, 22, 121, 242, 77509, 155018, 852599, 1705198, 9378589, 18757178]

約数ペア:

[(1, 18757178), (2, 9378589), (11, 1705198), (22, 852599), (121, 155018), (242, 77509)]