19998104

素因数分解:

$2^3\times 7^1\times {\mathrm{357109}}^1$

素因数の和:357122

約数の個数: 16

約数和(自身を含む): 42853200

約数和(自身を除く): 22855096

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 357109, 714218, 1428436, 2499763, 2856872, 4999526, 9999052, 19998104]

約数ペア:

[(1, 19998104), (2, 9999052), (4, 4999526), (7, 2856872), (8, 2499763), (14, 1428436), (28, 714218), (56, 357109)]