21856161383

素因数分解:

$7^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1\times {\mathrm{3061}}^1$

素因数の和:3387

約数の個数: 32

約数和(自身を含む): 25776650880

約数和(自身を除く): 3920489497

約数列:

[1, 7, 73, 89, 157, 511, 623, 1099, 3061, 6497, 11461, 13973, 21427, 45479, 80227, 97811, 223453, 272429, 480577, 1020029, 1564171, 1907003, 3364039, 7140203, 19887317, 35082121, 42771353, 139211219, 245574847, 299399471, 3122308769, 21856161383]

約数ペア:

[(1, 21856161383), (7, 3122308769), (73, 299399471), (89, 245574847), (157, 139211219), (511, 42771353), (623, 35082121), (1099, 19887317), (3061, 7140203), (6497, 3364039), (11461, 1907003), (13973, 1564171), (21427, 1020029), (45479, 480577), (80227, 272429), (97811, 223453)]