20371788

素因数分解:

$2^2\times 3^2\times {\mathrm{173}}^1\times {\mathrm{3271}}^1$

素因数の和:3454

約数の個数: 36

約数和(自身を含む): 51808848

約数和(自身を除く): 31437060

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 173, 346, 519, 692, 1038, 1557, 2076, 3114, 3271, 6228, 6542, 9813, 13084, 19626, 29439, 39252, 58878, 117756, 565883, 1131766, 1697649, 2263532, 3395298, 5092947, 6790596, 10185894, 20371788]

約数ペア:

[(1, 20371788), (2, 10185894), (3, 6790596), (4, 5092947), (6, 3395298), (9, 2263532), (12, 1697649), (18, 1131766), (36, 565883), (173, 117756), (346, 58878), (519, 39252), (692, 29439), (1038, 19626), (1557, 13084), (2076, 9813), (3114, 6542), (3271, 6228)]