217317815

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{27631}}^1$

素因数の和:27671

約数の個数: 24

約数和(自身を含む): 308704704

約数和(自身を除く): 91386889

約数列:

[1, 5, 11, 13, 55, 65, 121, 143, 605, 715, 1573, 7865, 27631, 138155, 303941, 359203, 1519705, 1796015, 3343351, 3951233, 16716755, 19756165, 43463563, 217317815]

約数ペア:

[(1, 217317815), (5, 43463563), (11, 19756165), (13, 16716755), (55, 3951233), (65, 3343351), (121, 1796015), (143, 1519705), (605, 359203), (715, 303941), (1573, 138155), (7865, 27631)]