21265764

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{136319}}^1$

素因数の和:136339

約数の個数: 24

約数和(自身を含む): 53437440

約数和(自身を除く): 32171676

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 136319, 272638, 408957, 545276, 817914, 1635828, 1772147, 3544294, 5316441, 7088588, 10632882, 21265764]

約数ペア:

[(1, 21265764), (2, 10632882), (3, 7088588), (4, 5316441), (6, 3544294), (12, 1772147), (13, 1635828), (26, 817914), (39, 545276), (52, 408957), (78, 272638), (156, 136319)]