20112057

素因数分解:

$3^4\times 7^1\times {\mathrm{79}}^1\times {\mathrm{449}}^1$

素因数の和:547

約数の個数: 40

約数和(自身を含む): 34848000

約数和(自身を除く): 14735943

約数列:

[1, 3, 7, 9, 21, 27, 63, 79, 81, 189, 237, 449, 553, 567, 711, 1347, 1659, 2133, 3143, 4041, 4977, 6399, 9429, 12123, 14931, 28287, 35471, 36369, 44793, 84861, 106413, 248297, 254583, 319239, 744891, 957717, 2234673, 2873151, 6704019, 20112057]

約数ペア:

[(1, 20112057), (3, 6704019), (7, 2873151), (9, 2234673), (21, 957717), (27, 744891), (63, 319239), (79, 254583), (81, 248297), (189, 106413), (237, 84861), (449, 44793), (553, 36369), (567, 35471), (711, 28287), (1347, 14931), (1659, 12123), (2133, 9429), (3143, 6399), (4041, 4977)]