19561390

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{115067}}^1$

素因数の和:115091

約数の個数: 16

約数和(自身を含む): 37282032

約数和(自身を除く): 17720642

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 115067, 230134, 575335, 1150670, 1956139, 3912278, 9780695, 19561390]

約数ペア:

[(1, 19561390), (2, 9780695), (5, 3912278), (10, 1956139), (17, 1150670), (34, 575335), (85, 230134), (170, 115067)]