21522904

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{206951}}^1$

素因数の和:206970

約数の個数: 16

約数和(自身を含む): 43459920

約数和(自身を除く): 21937016

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 206951, 413902, 827804, 1655608, 2690363, 5380726, 10761452, 21522904]

約数ペア:

[(1, 21522904), (2, 10761452), (4, 5380726), (8, 2690363), (13, 1655608), (26, 827804), (52, 413902), (104, 206951)]