21070778897

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{7691}}^1\times {\mathrm{20599}}^1$

素因数の和:28316

約数の個数: 16

約数和(自身を含む): 25352832000

約数和(自身を除く): 4282053103

約数列:

[1, 7, 19, 133, 7691, 20599, 53837, 144193, 146129, 391381, 1022903, 2739667, 158426909, 1108988363, 3010111271, 21070778897]

約数ペア:

[(1, 21070778897), (7, 3010111271), (19, 1108988363), (133, 158426909), (7691, 2739667), (20599, 1022903), (53837, 391381), (144193, 146129)]