19897490

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{53777}}^1$

素因数の和:53821

約数の個数: 16

約数和(自身を含む): 36784152

約数和(自身を除く): 16886662

約数列:

[1, 2, 5, 10, 37, 74, 185, 370, 53777, 107554, 268885, 537770, 1989749, 3979498, 9948745, 19897490]

約数ペア:

[(1, 19897490), (2, 9948745), (5, 3979498), (10, 1989749), (37, 537770), (74, 268885), (185, 107554), (370, 53777)]