21119372

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{2267}}^1$

素因数の和:2425

約数の個数: 24

約数和(自身を含む): 39435984

約数和(自身を除く): 18316612

約数列:

[1, 2, 4, 17, 34, 68, 137, 274, 548, 2267, 2329, 4534, 4658, 9068, 9316, 38539, 77078, 154156, 310579, 621158, 1242316, 5279843, 10559686, 21119372]

約数ペア:

[(1, 21119372), (2, 10559686), (4, 5279843), (17, 1242316), (34, 621158), (68, 310579), (137, 154156), (274, 77078), (548, 38539), (2267, 9316), (2329, 9068), (4534, 4658)]