16921629

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{293}}^1$

素因数の和:359

約数の個数: 40

約数和(自身を含む): 27320832

約数和(自身を除く): 10399203

約数列:

[1, 3, 9, 23, 27, 31, 69, 81, 93, 207, 279, 293, 621, 713, 837, 879, 1863, 2139, 2511, 2637, 6417, 6739, 7911, 9083, 19251, 20217, 23733, 27249, 57753, 60651, 81747, 181953, 208909, 245241, 545859, 626727, 735723, 1880181, 5640543, 16921629]

約数ペア:

[(1, 16921629), (3, 5640543), (9, 1880181), (23, 735723), (27, 626727), (31, 545859), (69, 245241), (81, 208909), (93, 181953), (207, 81747), (279, 60651), (293, 57753), (621, 27249), (713, 23733), (837, 20217), (879, 19251), (1863, 9083), (2139, 7911), (2511, 6739), (2637, 6417)]