18426928

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{88591}}^1$

素因数の和:88612

約数の個数: 20

約数和(自身を含む): 38448928

約数和(自身を除く): 20022000

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 88591, 177182, 354364, 708728, 1151683, 1417456, 2303366, 4606732, 9213464, 18426928]

約数ペア:

[(1, 18426928), (2, 9213464), (4, 4606732), (8, 2303366), (13, 1417456), (16, 1151683), (26, 708728), (52, 354364), (104, 177182), (208, 88591)]