20207787

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{1741}}^1$

素因数の和:1870

約数の個数: 16

約数和(自身を含む): 27844128

約数和(自身を除く): 7636341

約数列:

[1, 3, 53, 73, 159, 219, 1741, 3869, 5223, 11607, 92273, 127093, 276819, 381279, 6735929, 20207787]

約数ペア:

[(1, 20207787), (3, 6735929), (53, 381279), (73, 276819), (159, 127093), (219, 92273), (1741, 11607), (3869, 5223)]