20958488

素因数分解:

$2^3\times {\mathrm{821}}^1\times {\mathrm{3191}}^1$

素因数の和:4018

約数の個数: 16

約数和(自身を含む): 39357360

約数和(自身を除く): 18398872

約数列:

[1, 2, 4, 8, 821, 1642, 3191, 3284, 6382, 6568, 12764, 25528, 2619811, 5239622, 10479244, 20958488]

約数ペア:

[(1, 20958488), (2, 10479244), (4, 5239622), (8, 2619811), (821, 25528), (1642, 12764), (3191, 6568), (3284, 6382)]