21204225

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{13463}}^1$

素因数の和:13486

約数の個数: 36

約数和(自身を含む): 43407936

約数和(自身を除く): 22203711

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 105, 175, 225, 315, 525, 1575, 13463, 40389, 67315, 94241, 121167, 201945, 282723, 336575, 471205, 605835, 848169, 1009725, 1413615, 2356025, 3029175, 4240845, 7068075, 21204225]

約数ペア:

[(1, 21204225), (3, 7068075), (5, 4240845), (7, 3029175), (9, 2356025), (15, 1413615), (21, 1009725), (25, 848169), (35, 605835), (45, 471205), (63, 336575), (75, 282723), (105, 201945), (175, 121167), (225, 94241), (315, 67315), (525, 40389), (1575, 13463)]