20787468

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{133253}}^1$

素因数の和:133273

約数の個数: 24

約数和(自身を含む): 52235568

約数和(自身を除く): 31448100

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 133253, 266506, 399759, 533012, 799518, 1599036, 1732289, 3464578, 5196867, 6929156, 10393734, 20787468]

約数ペア:

[(1, 20787468), (2, 10393734), (3, 6929156), (4, 5196867), (6, 3464578), (12, 1732289), (13, 1599036), (26, 799518), (39, 533012), (52, 399759), (78, 266506), (156, 133253)]