21373105

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{10607}}^1$

素因数の和:10656

約数の個数: 16

約数和(自身を含む): 28514304

約数和(自身を除く): 7141199

約数列:

[1, 5, 13, 31, 65, 155, 403, 2015, 10607, 53035, 137891, 328817, 689455, 1644085, 4274621, 21373105]

約数ペア:

[(1, 21373105), (5, 4274621), (13, 1644085), (31, 689455), (65, 328817), (155, 137891), (403, 53035), (2015, 10607)]