18871090

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{3797}}^1$

素因数の和:3882

約数の個数: 32

約数和(自身を含む): 39377664

約数和(自身を除く): 20506574

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 71, 142, 355, 497, 710, 994, 2485, 3797, 4970, 7594, 18985, 26579, 37970, 53158, 132895, 265790, 269587, 539174, 1347935, 1887109, 2695870, 3774218, 9435545, 18871090]

約数ペア:

[(1, 18871090), (2, 9435545), (5, 3774218), (7, 2695870), (10, 1887109), (14, 1347935), (35, 539174), (70, 269587), (71, 265790), (142, 132895), (355, 53158), (497, 37970), (710, 26579), (994, 18985), (2485, 7594), (3797, 4970)]