19821790

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{68351}}^1$

素因数の和:68387

約数の個数: 16

約数和(自身を含む): 36910080

約数和(自身を除く): 17088290

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 68351, 136702, 341755, 683510, 1982179, 3964358, 9910895, 19821790]

約数ペア:

[(1, 19821790), (2, 9910895), (5, 3964358), (10, 1982179), (29, 683510), (58, 341755), (145, 136702), (290, 68351)]