18874670

素因数分解:

$2^1\times 5^1\times {\mathrm{907}}^1\times {\mathrm{2081}}^1$

素因数の和:2995

約数の個数: 16

約数和(自身を含む): 34028208

約数和(自身を除く): 15153538

約数列:

[1, 2, 5, 10, 907, 1814, 2081, 4162, 4535, 9070, 10405, 20810, 1887467, 3774934, 9437335, 18874670]

約数ペア:

[(1, 18874670), (2, 9437335), (5, 3774934), (10, 1887467), (907, 20810), (1814, 10405), (2081, 9070), (4162, 4535)]