20509884

素因数分解:

$2^2\times 3^2\times {\mathrm{131}}^1\times {\mathrm{4349}}^1$

素因数の和:4490

約数の個数: 36

約数和(自身を含む): 52252200

約数和(自身を除く): 31742316

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 131, 262, 393, 524, 786, 1179, 1572, 2358, 4349, 4716, 8698, 13047, 17396, 26094, 39141, 52188, 78282, 156564, 569719, 1139438, 1709157, 2278876, 3418314, 5127471, 6836628, 10254942, 20509884]

約数ペア:

[(1, 20509884), (2, 10254942), (3, 6836628), (4, 5127471), (6, 3418314), (9, 2278876), (12, 1709157), (18, 1139438), (36, 569719), (131, 156564), (262, 78282), (393, 52188), (524, 39141), (786, 26094), (1179, 17396), (1572, 13047), (2358, 8698), (4349, 4716)]