21373640

素因数分解:

$2^3\times 5^1\times {\mathrm{534341}}^1$

素因数の和:534352

約数の個数: 16

約数和(自身を含む): 48090780

約数和(自身を除く): 26717140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 534341, 1068682, 2137364, 2671705, 4274728, 5343410, 10686820, 21373640]

約数ペア:

[(1, 21373640), (2, 10686820), (4, 5343410), (5, 4274728), (8, 2671705), (10, 2137364), (20, 1068682), (40, 534341)]