128445513

素因数分解:

$3^1\times 7^2\times {\mathrm{401}}^1\times {\mathrm{2179}}^1$

素因数の和:2597

約数の個数: 24

約数和(自身を含む): 199810080

約数和(自身を除く): 71364567

約数列:

[1, 3, 7, 21, 49, 147, 401, 1203, 2179, 2807, 6537, 8421, 15253, 19649, 45759, 58947, 106771, 320313, 873779, 2621337, 6116453, 18349359, 42815171, 128445513]

約数ペア:

[(1, 128445513), (3, 42815171), (7, 18349359), (21, 6116453), (49, 2621337), (147, 873779), (401, 320313), (1203, 106771), (2179, 58947), (2807, 45759), (6537, 19649), (8421, 15253)]