21002025

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{25457}}^1$

素因数の和:25481

約数の個数: 24

約数和(自身を含む): 37881504

約数和(自身を除く): 16879479

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 165, 275, 825, 25457, 76371, 127285, 280027, 381855, 636425, 840081, 1400135, 1909275, 4200405, 7000675, 21002025]

約数ペア:

[(1, 21002025), (3, 7000675), (5, 4200405), (11, 1909275), (15, 1400135), (25, 840081), (33, 636425), (55, 381855), (75, 280027), (165, 127285), (275, 76371), (825, 25457)]