20807985

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{5483}}^1$

素因数の和:5525

約数の個数: 32

約数和(自身を含む): 37905408

約数和(自身を除く): 17097423

約数列:

[1, 3, 5, 11, 15, 23, 33, 55, 69, 115, 165, 253, 345, 759, 1265, 3795, 5483, 16449, 27415, 60313, 82245, 126109, 180939, 301565, 378327, 630545, 904695, 1387199, 1891635, 4161597, 6935995, 20807985]

約数ペア:

[(1, 20807985), (3, 6935995), (5, 4161597), (11, 1891635), (15, 1387199), (23, 904695), (33, 630545), (55, 378327), (69, 301565), (115, 180939), (165, 126109), (253, 82245), (345, 60313), (759, 27415), (1265, 16449), (3795, 5483)]