21169165

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{271}}^1\times {\mathrm{919}}^1$

素因数の和:1212

約数の個数: 16

約数和(自身を含む): 27025920

約数和(自身を除く): 5856755

約数列:

[1, 5, 17, 85, 271, 919, 1355, 4595, 4607, 15623, 23035, 78115, 249049, 1245245, 4233833, 21169165]

約数ペア:

[(1, 21169165), (5, 4233833), (17, 1245245), (85, 249049), (271, 78115), (919, 23035), (1355, 15623), (4595, 4607)]