20987886

素因数分解:

$2^1\times 3^1\times {\mathrm{1543}}^1\times {\mathrm{2267}}^1$

素因数の和:3815

約数の個数: 16

約数和(自身を含む): 42021504

約数和(自身を除く): 21033618

約数列:

[1, 2, 3, 6, 1543, 2267, 3086, 4534, 4629, 6801, 9258, 13602, 3497981, 6995962, 10493943, 20987886]

約数ペア:

[(1, 20987886), (2, 10493943), (3, 6995962), (6, 3497981), (1543, 13602), (2267, 9258), (3086, 6801), (4534, 4629)]