21418558

素因数分解:

$2^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{757}}^1$

素因数の和:856

約数の個数: 32

約数和(自身を含む): 38421504

約数和(自身を除く): 17002946

約数列:

[1, 2, 7, 14, 43, 47, 86, 94, 301, 329, 602, 658, 757, 1514, 2021, 4042, 5299, 10598, 14147, 28294, 32551, 35579, 65102, 71158, 227857, 249053, 455714, 498106, 1529897, 3059794, 10709279, 21418558]

約数ペア:

[(1, 21418558), (2, 10709279), (7, 3059794), (14, 1529897), (43, 498106), (47, 455714), (86, 249053), (94, 227857), (301, 71158), (329, 65102), (602, 35579), (658, 32551), (757, 28294), (1514, 14147), (2021, 10598), (4042, 5299)]