20489224

素因数分解:

$2^3\times 7^1\times {\mathrm{89}}^1\times {\mathrm{4111}}^1$

素因数の和:4213

約数の個数: 32

約数和(自身を含む): 44409600

約数和(自身を除く): 23920376

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 89, 178, 356, 623, 712, 1246, 2492, 4111, 4984, 8222, 16444, 28777, 32888, 57554, 115108, 230216, 365879, 731758, 1463516, 2561153, 2927032, 5122306, 10244612, 20489224]

約数ペア:

[(1, 20489224), (2, 10244612), (4, 5122306), (7, 2927032), (8, 2561153), (14, 1463516), (28, 731758), (56, 365879), (89, 230216), (178, 115108), (356, 57554), (623, 32888), (712, 28777), (1246, 16444), (2492, 8222), (4111, 4984)]