206520885

素因数分解:

$3^2\times 5^1\times {\mathrm{353}}^1\times {\mathrm{13001}}^1$

素因数の和:13365

約数の個数: 24

約数和(自身を含む): 359011224

約数和(自身を除く): 152490339

約数列:

[1, 3, 5, 9, 15, 45, 353, 1059, 1765, 3177, 5295, 13001, 15885, 39003, 65005, 117009, 195015, 585045, 4589353, 13768059, 22946765, 41304177, 68840295, 206520885]

約数ペア:

[(1, 206520885), (3, 68840295), (5, 41304177), (9, 22946765), (15, 13768059), (45, 4589353), (353, 585045), (1059, 195015), (1765, 117009), (3177, 65005), (5295, 39003), (13001, 15885)]