18898438

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{8167}}^1$

素因数の和:8271

約数の個数: 16

約数和(自身を含む): 30875040

約数和(自身を除く): 11976602

約数列:

[1, 2, 13, 26, 89, 178, 1157, 2314, 8167, 16334, 106171, 212342, 726863, 1453726, 9449219, 18898438]

約数ペア:

[(1, 18898438), (2, 9449219), (13, 1453726), (26, 726863), (89, 212342), (178, 106171), (1157, 16334), (2314, 8167)]