21470439

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{2137}}^1$

素因数の和:2354

約数の個数: 16

約数和(自身を含む): 30479328

約数和(自身を除く): 9008889

約数列:

[1, 3, 17, 51, 197, 591, 2137, 3349, 6411, 10047, 36329, 108987, 420989, 1262967, 7156813, 21470439]

約数ペア:

[(1, 21470439), (3, 7156813), (17, 1262967), (51, 420989), (197, 108987), (591, 36329), (2137, 10047), (3349, 6411)]