21206061

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{569}}^1$

素因数の和:717

約数の個数: 24

約数和(自身を含む): 31744440

約数和(自身を除く): 10538379

約数列:

[1, 3, 9, 41, 101, 123, 303, 369, 569, 909, 1707, 4141, 5121, 12423, 23329, 37269, 57469, 69987, 172407, 209961, 517221, 2356229, 7068687, 21206061]

約数ペア:

[(1, 21206061), (3, 7068687), (9, 2356229), (41, 517221), (101, 209961), (123, 172407), (303, 69987), (369, 57469), (569, 37269), (909, 23329), (1707, 12423), (4141, 5121)]