21942195

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1873}}^1$

素因数の和:1963

約数の個数: 32

約数和(自身を含む): 38859264

約数和(自身を除く): 16917069

約数列:

[1, 3, 5, 11, 15, 33, 55, 71, 165, 213, 355, 781, 1065, 1873, 2343, 3905, 5619, 9365, 11715, 20603, 28095, 61809, 103015, 132983, 309045, 398949, 664915, 1462813, 1994745, 4388439, 7314065, 21942195]

約数ペア:

[(1, 21942195), (3, 7314065), (5, 4388439), (11, 1994745), (15, 1462813), (33, 664915), (55, 398949), (71, 309045), (165, 132983), (213, 103015), (355, 61809), (781, 28095), (1065, 20603), (1873, 11715), (2343, 9365), (3905, 5619)]