20515818

素因数分解:

$2^1\times 3^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{751}}^1$

素因数の和:942

約数の個数: 32

約数和(自身を含む): 42773760

約数和(自身を除く): 22257942

約数列:

[1, 2, 3, 6, 29, 58, 87, 157, 174, 314, 471, 751, 942, 1502, 2253, 4506, 4553, 9106, 13659, 21779, 27318, 43558, 65337, 117907, 130674, 235814, 353721, 707442, 3419303, 6838606, 10257909, 20515818]

約数ペア:

[(1, 20515818), (2, 10257909), (3, 6838606), (6, 3419303), (29, 707442), (58, 353721), (87, 235814), (157, 130674), (174, 117907), (314, 65337), (471, 43558), (751, 27318), (942, 21779), (1502, 13659), (2253, 9106), (4506, 4553)]