21546928

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{103591}}^1$

素因数の和:103612

約数の個数: 20

約数和(自身を含む): 44958928

約数和(自身を除く): 23412000

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 103591, 207182, 414364, 828728, 1346683, 1657456, 2693366, 5386732, 10773464, 21546928]

約数ペア:

[(1, 21546928), (2, 10773464), (4, 5386732), (8, 2693366), (13, 1657456), (16, 1346683), (26, 828728), (52, 414364), (104, 207182), (208, 103591)]