20316428

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{173}}^1$

素因数の和:362

約数の個数: 48

約数和(自身を含む): 41567904

約数和(自身を除く): 21251476

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 157, 173, 187, 314, 346, 374, 628, 692, 748, 1727, 1903, 2669, 2941, 3454, 3806, 5338, 5882, 6908, 7612, 10676, 11764, 27161, 29359, 32351, 54322, 58718, 64702, 108644, 117436, 129404, 298771, 461737, 597542, 923474, 1195084, 1846948, 5079107, 10158214, 20316428]

約数ペア:

[(1, 20316428), (2, 10158214), (4, 5079107), (11, 1846948), (17, 1195084), (22, 923474), (34, 597542), (44, 461737), (68, 298771), (157, 129404), (173, 117436), (187, 108644), (314, 64702), (346, 58718), (374, 54322), (628, 32351), (692, 29359), (748, 27161), (1727, 11764), (1903, 10676), (2669, 7612), (2941, 6908), (3454, 5882), (3806, 5338)]