21804944

素因数分解:

$2^4\times 7^1\times {\mathrm{194687}}^1$

素因数の和:194702

約数の個数: 20

約数和(自身を含む): 48282624

約数和(自身を除く): 26477680

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 194687, 389374, 778748, 1362809, 1557496, 2725618, 3114992, 5451236, 10902472, 21804944]

約数ペア:

[(1, 21804944), (2, 10902472), (4, 5451236), (7, 3114992), (8, 2725618), (14, 1557496), (16, 1362809), (28, 778748), (56, 389374), (112, 194687)]