20785023

素因数分解:

$3^2\times 7^1\times {\mathrm{359}}^1\times {\mathrm{919}}^1$

素因数の和:1291

約数の個数: 24

約数和(自身を含む): 34444800

約数和(自身を除く): 13659777

約数列:

[1, 3, 7, 9, 21, 63, 359, 919, 1077, 2513, 2757, 3231, 6433, 7539, 8271, 19299, 22617, 57897, 329921, 989763, 2309447, 2969289, 6928341, 20785023]

約数ペア:

[(1, 20785023), (3, 6928341), (7, 2969289), (9, 2309447), (21, 989763), (63, 329921), (359, 57897), (919, 22617), (1077, 19299), (2513, 8271), (2757, 7539), (3231, 6433)]