18511376

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{88997}}^1$

素因数の和:89018

約数の個数: 20

約数和(自身を含む): 38625132

約数和(自身を除く): 20113756

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 88997, 177994, 355988, 711976, 1156961, 1423952, 2313922, 4627844, 9255688, 18511376]

約数ペア:

[(1, 18511376), (2, 9255688), (4, 4627844), (8, 2313922), (13, 1423952), (16, 1156961), (26, 711976), (52, 355988), (104, 177994), (208, 88997)]