20091578

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{17971}}^1$

素因数の和:18029

約数の個数: 16

約数和(自身を含む): 33212256

約数和(自身を除く): 13120678

約数列:

[1, 2, 13, 26, 43, 86, 559, 1118, 17971, 35942, 233623, 467246, 772753, 1545506, 10045789, 20091578]

約数ペア:

[(1, 20091578), (2, 10045789), (13, 1545506), (26, 772753), (43, 467246), (86, 233623), (559, 35942), (1118, 17971)]