21206536

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{203909}}^1$

素因数の和:203928

約数の個数: 16

約数和(自身を含む): 42821100

約数和(自身を除く): 21614564

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 203909, 407818, 815636, 1631272, 2650817, 5301634, 10603268, 21206536]

約数ペア:

[(1, 21206536), (2, 10603268), (4, 5301634), (8, 2650817), (13, 1631272), (26, 815636), (52, 407818), (104, 203909)]