19021293

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{239}}^2$

素因数の和:521

約数の個数: 18

約数和(自身を含む): 28336334

約数和(自身を除く): 9315041

約数列:

[1, 3, 9, 37, 111, 239, 333, 717, 2151, 8843, 26529, 57121, 79587, 171363, 514089, 2113477, 6340431, 19021293]

約数ペア:

[(1, 19021293), (3, 6340431), (9, 2113477), (37, 514089), (111, 171363), (239, 79587), (333, 57121), (717, 26529), (2151, 8843)]