21192771

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{2281}}^1$

素因数の和:2466

約数の個数: 16

約数和(自身を含む): 29939840

約数和(自身を除く): 8747069

約数列:

[1, 3, 19, 57, 163, 489, 2281, 3097, 6843, 9291, 43339, 130017, 371803, 1115409, 7064257, 21192771]

約数ペア:

[(1, 21192771), (3, 7064257), (19, 1115409), (57, 371803), (163, 130017), (489, 43339), (2281, 9291), (3097, 6843)]