21087045

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{66943}}^1$

素因数の和:66961

約数の個数: 24

約数和(自身を含む): 41773056

約数和(自身を除く): 20686011

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 66943, 200829, 334715, 468601, 602487, 1004145, 1405803, 2343005, 3012435, 4217409, 7029015, 21087045]

約数ペア:

[(1, 21087045), (3, 7029015), (5, 4217409), (7, 3012435), (9, 2343005), (15, 1405803), (21, 1004145), (35, 602487), (45, 468601), (63, 334715), (105, 200829), (315, 66943)]