19782119

素因数分解:

$7^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1\times {\mathrm{281}}^1$

素因数の和:490

約数の個数: 16

約数和(自身を含む): 23146560

約数和(自身を除く): 3364441

約数列:

[1, 7, 89, 113, 281, 623, 791, 1967, 10057, 25009, 31753, 70399, 175063, 222271, 2826017, 19782119]

約数ペア:

[(1, 19782119), (7, 2826017), (89, 222271), (113, 175063), (281, 70399), (623, 31753), (791, 25009), (1967, 10057)]