19825454

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{5209}}^1$

素因数の和:5395

約数の個数: 16

約数和(自身を含む): 32635440

約数和(自身を除く): 12809986

約数列:

[1, 2, 11, 22, 173, 346, 1903, 3806, 5209, 10418, 57299, 114598, 901157, 1802314, 9912727, 19825454]

約数ペア:

[(1, 19825454), (2, 9912727), (11, 1802314), (22, 901157), (173, 114598), (346, 57299), (1903, 10418), (3806, 5209)]