19708508

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{2659}}^1$

素因数の和:2789

約数の個数: 24

約数和(自身を含む): 36867600

約数和(自身を除く): 17159092

約数列:

[1, 2, 4, 17, 34, 68, 109, 218, 436, 1853, 2659, 3706, 5318, 7412, 10636, 45203, 90406, 180812, 289831, 579662, 1159324, 4927127, 9854254, 19708508]

約数ペア:

[(1, 19708508), (2, 9854254), (4, 4927127), (17, 1159324), (34, 579662), (68, 289831), (109, 180812), (218, 90406), (436, 45203), (1853, 10636), (2659, 7412), (3706, 5318)]