19910536

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{281}}^1\times {\mathrm{521}}^1$

素因数の和:825

約数の個数: 32

約数和(自身を含む): 39745080

約数和(自身を除く): 19834544

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 281, 521, 562, 1042, 1124, 2084, 2248, 4168, 4777, 8857, 9554, 17714, 19108, 35428, 38216, 70856, 146401, 292802, 585604, 1171208, 2488817, 4977634, 9955268, 19910536]

約数ペア:

[(1, 19910536), (2, 9955268), (4, 4977634), (8, 2488817), (17, 1171208), (34, 585604), (68, 292802), (136, 146401), (281, 70856), (521, 38216), (562, 35428), (1042, 19108), (1124, 17714), (2084, 9554), (2248, 8857), (4168, 4777)]