81263121

素因数分解:

$3^1\times {\mathrm{31}}^2\times {\mathrm{71}}^1\times {\mathrm{397}}^1$

素因数の和:533

約数の個数: 24

約数和(自身を含む): 113821632

約数和(自身を除く): 32558511

約数列:

[1, 3, 31, 71, 93, 213, 397, 961, 1191, 2201, 2883, 6603, 12307, 28187, 36921, 68231, 84561, 204693, 381517, 873797, 1144551, 2621391, 27087707, 81263121]

約数ペア:

[(1, 81263121), (3, 27087707), (31, 2621391), (71, 1144551), (93, 873797), (213, 381517), (397, 204693), (961, 84561), (1191, 68231), (2201, 36921), (2883, 28187), (6603, 12307)]