19904361

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{4729}}^1$

素因数の和:4816

約数の個数: 16

約数和(自身を含む): 28152960

約数和(自身を除く): 8248599

約数列:

[1, 3, 23, 61, 69, 183, 1403, 4209, 4729, 14187, 108767, 288469, 326301, 865407, 6634787, 19904361]

約数ペア:

[(1, 19904361), (3, 6634787), (23, 865407), (61, 326301), (69, 288469), (183, 108767), (1403, 14187), (4209, 4729)]