20488655

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{1289}}^1$

素因数の和:1339

約数の個数: 24

約数和(自身を含む): 28514160

約数和(自身を除く): 8025505

約数列:

[1, 5, 11, 17, 55, 85, 187, 289, 935, 1289, 1445, 3179, 6445, 14179, 15895, 21913, 70895, 109565, 241043, 372521, 1205215, 1862605, 4097731, 20488655]

約数ペア:

[(1, 20488655), (5, 4097731), (11, 1862605), (17, 1205215), (55, 372521), (85, 241043), (187, 109565), (289, 70895), (935, 21913), (1289, 15895), (1445, 14179), (3179, 6445)]