131371989

素因数分解:

$3^1\times 7^2\times {\mathrm{601}}^1\times {\mathrm{1487}}^1$

素因数の和:2105

約数の個数: 24

約数和(自身を含む): 204236928

約数和(自身を除く): 72864939

約数列:

[1, 3, 7, 21, 49, 147, 601, 1487, 1803, 4207, 4461, 10409, 12621, 29449, 31227, 72863, 88347, 218589, 893687, 2681061, 6255809, 18767427, 43790663, 131371989]

約数ペア:

[(1, 131371989), (3, 43790663), (7, 18767427), (21, 6255809), (49, 2681061), (147, 893687), (601, 218589), (1487, 88347), (1803, 72863), (4207, 31227), (4461, 29449), (10409, 12621)]