18854576

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{90647}}^1$

素因数の和:90668

約数の個数: 20

約数和(自身を含む): 39341232

約数和(自身を除く): 20486656

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 90647, 181294, 362588, 725176, 1178411, 1450352, 2356822, 4713644, 9427288, 18854576]

約数ペア:

[(1, 18854576), (2, 9427288), (4, 4713644), (8, 2356822), (13, 1450352), (16, 1178411), (26, 725176), (52, 362588), (104, 181294), (208, 90647)]