21391023

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{3433}}^1$

素因数の和:3534

約数の個数: 16

約数和(自身を含む): 29889536

約数和(自身を除く): 8498513

約数列:

[1, 3, 31, 67, 93, 201, 2077, 3433, 6231, 10299, 106423, 230011, 319269, 690033, 7130341, 21391023]

約数ペア:

[(1, 21391023), (3, 7130341), (31, 690033), (67, 319269), (93, 230011), (201, 106423), (2077, 10299), (3433, 6231)]