18713378

素因数分解:

$2^1\times {\mathrm{137}}^1\times {\mathrm{163}}^1\times {\mathrm{419}}^1$

素因数の和:721

約数の個数: 16

約数和(自身を含む): 28516320

約数和(自身を除く): 9802942

約数列:

[1, 2, 137, 163, 274, 326, 419, 838, 22331, 44662, 57403, 68297, 114806, 136594, 9356689, 18713378]

約数ペア:

[(1, 18713378), (2, 9356689), (137, 136594), (163, 114806), (274, 68297), (326, 57403), (419, 44662), (838, 22331)]