18019910

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43951}}^1$

素因数の和:43999

約数の個数: 16

約数和(自身を含む): 33227712

約数和(自身を除く): 15207802

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 43951, 87902, 219755, 439510, 1801991, 3603982, 9009955, 18019910]

約数ペア:

[(1, 18019910), (2, 9009955), (5, 3603982), (10, 1801991), (41, 439510), (82, 219755), (205, 87902), (410, 43951)]