18986427

素因数分解:

$3^3\times {\mathrm{139}}^1\times {\mathrm{5059}}^1$

素因数の和:5207

約数の個数: 16

約数和(自身を含む): 28336000

約数和(自身を除く): 9349573

約数列:

[1, 3, 9, 27, 139, 417, 1251, 3753, 5059, 15177, 45531, 136593, 703201, 2109603, 6328809, 18986427]

約数ペア:

[(1, 18986427), (3, 6328809), (9, 2109603), (27, 703201), (139, 136593), (417, 45531), (1251, 15177), (3753, 5059)]