20780156673

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{2099}}^1\times {\mathrm{15493}}^1$

素因数の和:17669

約数の個数: 24

約数和(自身を含む): 30455006400

約数和(自身を除く): 9674849727

約数列:

[1, 3, 9, 71, 213, 639, 2099, 6297, 15493, 18891, 46479, 139437, 149029, 447087, 1100003, 1341261, 3300009, 9900027, 32519807, 97559421, 292678263, 2308906297, 6926718891, 20780156673]

約数ペア:

[(1, 20780156673), (3, 6926718891), (9, 2308906297), (71, 292678263), (213, 97559421), (639, 32519807), (2099, 9900027), (6297, 3300009), (15493, 1341261), (18891, 1100003), (46479, 447087), (139437, 149029)]