20993890

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{48823}}^1$

素因数の和:48873

約数の個数: 16

約数和(自身を含む): 38668608

約数和(自身を除く): 17674718

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 48823, 97646, 244115, 488230, 2099389, 4198778, 10496945, 20993890]

約数ペア:

[(1, 20993890), (2, 10496945), (5, 4198778), (10, 2099389), (43, 488230), (86, 244115), (215, 97646), (430, 48823)]