21115494

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{27281}}^1$

素因数の和:27332

約数の個数: 24

約数和(自身を含む): 46815912

約数和(自身を除く): 25700418

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387, 774, 27281, 54562, 81843, 163686, 245529, 491058, 1173083, 2346166, 3519249, 7038498, 10557747, 21115494]

約数ペア:

[(1, 21115494), (2, 10557747), (3, 7038498), (6, 3519249), (9, 2346166), (18, 1173083), (43, 491058), (86, 245529), (129, 163686), (258, 81843), (387, 54562), (774, 27281)]