21043335

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{19759}}^1$

素因数の和:19838

約数の個数: 16

約数和(自身を含む): 34145280

約数和(自身を除く): 13101945

約数列:

[1, 3, 5, 15, 71, 213, 355, 1065, 19759, 59277, 98795, 296385, 1402889, 4208667, 7014445, 21043335]

約数ペア:

[(1, 21043335), (3, 7014445), (5, 4208667), (15, 1402889), (71, 296385), (213, 98795), (355, 59277), (1065, 19759)]