19991141121

素因数分解:

$3^1\times 7^1\times {\mathrm{5903}}^1\times {\mathrm{161267}}^1$

素因数の和:167180

約数の個数: 16

約数和(自身を含む): 30468040704

約数和(自身を除く): 10476899583

約数列:

[1, 3, 7, 21, 5903, 17709, 41321, 123963, 161267, 483801, 1128869, 3386607, 951959101, 2855877303, 6663713707, 19991141121]

約数ペア:

[(1, 19991141121), (3, 6663713707), (7, 2855877303), (21, 951959101), (5903, 3386607), (17709, 1128869), (41321, 483801), (123963, 161267)]