20756043

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{491}}^1$

素因数の和:576

約数の個数: 48

約数和(自身を含む): 38068992

約数和(自身を除く): 17312949

約数列:

[1, 3, 7, 9, 11, 21, 33, 61, 63, 77, 99, 183, 231, 427, 491, 549, 671, 693, 1281, 1473, 2013, 3437, 3843, 4419, 4697, 5401, 6039, 10311, 14091, 16203, 29951, 30933, 37807, 42273, 48609, 89853, 113421, 209657, 269559, 329461, 340263, 628971, 988383, 1886913, 2306227, 2965149, 6918681, 20756043]

約数ペア:

[(1, 20756043), (3, 6918681), (7, 2965149), (9, 2306227), (11, 1886913), (21, 988383), (33, 628971), (61, 340263), (63, 329461), (77, 269559), (99, 209657), (183, 113421), (231, 89853), (427, 48609), (491, 42273), (549, 37807), (671, 30933), (693, 29951), (1281, 16203), (1473, 14091), (2013, 10311), (3437, 6039), (3843, 5401), (4419, 4697)]