18866224

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{90703}}^1$

素因数の和:90724

約数の個数: 20

約数和(自身を含む): 39365536

約数和(自身を除く): 20499312

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 90703, 181406, 362812, 725624, 1179139, 1451248, 2358278, 4716556, 9433112, 18866224]

約数ペア:

[(1, 18866224), (2, 9433112), (4, 4716556), (8, 2358278), (13, 1451248), (16, 1179139), (26, 725624), (52, 362812), (104, 181406), (208, 90703)]