19981446

素因数分解:

$2^1\times 3^1\times {\mathrm{1321}}^1\times {\mathrm{2521}}^1$

素因数の和:3847

約数の個数: 16

約数和(自身を含む): 40009008

約数和(自身を除く): 20027562

約数列:

[1, 2, 3, 6, 1321, 2521, 2642, 3963, 5042, 7563, 7926, 15126, 3330241, 6660482, 9990723, 19981446]

約数ペア:

[(1, 19981446), (2, 9990723), (3, 6660482), (6, 3330241), (1321, 15126), (2521, 7926), (2642, 7563), (3963, 5042)]