21980418

素因数分解:

$2^1\times 3^1\times {\mathrm{709}}^1\times {\mathrm{5167}}^1$

素因数の和:5881

約数の個数: 16

約数和(自身を含む): 44031360

約数和(自身を除く): 22050942

約数列:

[1, 2, 3, 6, 709, 1418, 2127, 4254, 5167, 10334, 15501, 31002, 3663403, 7326806, 10990209, 21980418]

約数ペア:

[(1, 21980418), (2, 10990209), (3, 7326806), (6, 3663403), (709, 31002), (1418, 15501), (2127, 10334), (4254, 5167)]