20162121

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{30971}}^1$

素因数の和:31012

約数の個数: 16

約数和(自身を含む): 31715328

約数和(自身を除く): 11553207

約数列:

[1, 3, 7, 21, 31, 93, 217, 651, 30971, 92913, 216797, 650391, 960101, 2880303, 6720707, 20162121]

約数ペア:

[(1, 20162121), (3, 6720707), (7, 2880303), (21, 960101), (31, 650391), (93, 216797), (217, 92913), (651, 30971)]