21439647

素因数分解:

$3^5\times {\mathrm{83}}^1\times {\mathrm{1063}}^1$

素因数の和:1161

約数の個数: 24

約数和(自身を含む): 32532864

約数和(自身を除く): 11093217

約数列:

[1, 3, 9, 27, 81, 83, 243, 249, 747, 1063, 2241, 3189, 6723, 9567, 20169, 28701, 86103, 88229, 258309, 264687, 794061, 2382183, 7146549, 21439647]

約数ペア:

[(1, 21439647), (3, 7146549), (9, 2382183), (27, 794061), (81, 264687), (83, 258309), (243, 88229), (249, 86103), (747, 28701), (1063, 20169), (2241, 9567), (3189, 6723)]