21977868

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{997}}^1$

素因数の和:1182

約数の個数: 48

約数和(自身を含む): 56335104

約数和(自身を除く): 34357236

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132, 167, 334, 501, 668, 997, 1002, 1837, 1994, 2004, 2991, 3674, 3988, 5511, 5982, 7348, 10967, 11022, 11964, 21934, 22044, 32901, 43868, 65802, 131604, 166499, 332998, 499497, 665996, 998994, 1831489, 1997988, 3662978, 5494467, 7325956, 10988934, 21977868]

約数ペア:

[(1, 21977868), (2, 10988934), (3, 7325956), (4, 5494467), (6, 3662978), (11, 1997988), (12, 1831489), (22, 998994), (33, 665996), (44, 499497), (66, 332998), (132, 166499), (167, 131604), (334, 65802), (501, 43868), (668, 32901), (997, 22044), (1002, 21934), (1837, 11964), (1994, 11022), (2004, 10967), (2991, 7348), (3674, 5982), (3988, 5511)]