21272025

素因数分解:

$3^1\times 5^2\times {\mathrm{181}}^1\times {\mathrm{1567}}^1$

素因数の和:1761

約数の個数: 24

約数和(自身を含む): 35386624

約数和(自身を除く): 14114599

約数列:

[1, 3, 5, 15, 25, 75, 181, 543, 905, 1567, 2715, 4525, 4701, 7835, 13575, 23505, 39175, 117525, 283627, 850881, 1418135, 4254405, 7090675, 21272025]

約数ペア:

[(1, 21272025), (3, 7090675), (5, 4254405), (15, 1418135), (25, 850881), (75, 283627), (181, 117525), (543, 39175), (905, 23505), (1567, 13575), (2715, 7835), (4525, 4701)]