18838897

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{2749}}^1$

素因数の和:2856

約数の個数: 16

約数和(自身を含む): 23760000

約数和(自身を除く): 4921103

約数列:

[1, 7, 11, 77, 89, 623, 979, 2749, 6853, 19243, 30239, 211673, 244661, 1712627, 2691271, 18838897]

約数ペア:

[(1, 18838897), (7, 2691271), (11, 1712627), (77, 244661), (89, 211673), (623, 30239), (979, 19243), (2749, 6853)]