20316495

素因数分解:

$3^1\times 5^1\times {\mathrm{641}}^1\times {\mathrm{2113}}^1$

素因数の和:2762

約数の個数: 16

約数和(自身を含む): 32572512

約数和(自身を除く): 12256017

約数列:

[1, 3, 5, 15, 641, 1923, 2113, 3205, 6339, 9615, 10565, 31695, 1354433, 4063299, 6772165, 20316495]

約数ペア:

[(1, 20316495), (3, 6772165), (5, 4063299), (15, 1354433), (641, 31695), (1923, 10565), (2113, 9615), (3205, 6339)]