20161521863

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{431}}^1\times {\mathrm{2953}}^1$

素因数の和:3495

約数の個数: 32

約数和(自身を含む): 24174968832

約数和(自身を除く): 4013446969

約数列:

[1, 7, 31, 73, 217, 431, 511, 2263, 2953, 3017, 13361, 15841, 20671, 31463, 91543, 93527, 215569, 220241, 640801, 975353, 1272743, 1508983, 6682639, 6827471, 8909201, 39455033, 46778473, 92910239, 276185231, 650371673, 2880217409, 20161521863]

約数ペア:

[(1, 20161521863), (7, 2880217409), (31, 650371673), (73, 276185231), (217, 92910239), (431, 46778473), (511, 39455033), (2263, 8909201), (2953, 6827471), (3017, 6682639), (13361, 1508983), (15841, 1272743), (20671, 975353), (31463, 640801), (91543, 220241), (93527, 215569)]