128857257

素因数分解:

$3^3\times {\mathrm{53}}^2\times {\mathrm{1699}}^1$

素因数の和:1814

約数の個数: 24

約数和(自身を含む): 194684000

約数和(自身を除く): 65826743

約数列:

[1, 3, 9, 27, 53, 159, 477, 1431, 1699, 2809, 5097, 8427, 15291, 25281, 45873, 75843, 90047, 270141, 810423, 2431269, 4772491, 14317473, 42952419, 128857257]

約数ペア:

[(1, 128857257), (3, 42952419), (9, 14317473), (27, 4772491), (53, 2431269), (159, 810423), (477, 270141), (1431, 90047), (1699, 75843), (2809, 45873), (5097, 25281), (8427, 15291)]