18436376

素因数分解:

$2^3\times 7^1\times {\mathrm{401}}^1\times {\mathrm{821}}^1$

素因数の和:1235

約数の個数: 32

約数和(自身を含む): 39653280

約数和(自身を除く): 21216904

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 401, 802, 821, 1604, 1642, 2807, 3208, 3284, 5614, 5747, 6568, 11228, 11494, 22456, 22988, 45976, 329221, 658442, 1316884, 2304547, 2633768, 4609094, 9218188, 18436376]

約数ペア:

[(1, 18436376), (2, 9218188), (4, 4609094), (7, 2633768), (8, 2304547), (14, 1316884), (28, 658442), (56, 329221), (401, 45976), (802, 22988), (821, 22456), (1604, 11494), (1642, 11228), (2807, 6568), (3208, 5747), (3284, 5614)]