217503

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^3$

素因数の和:56

約数の個数: 24

約数和(自身を含む): 371280

約数和(自身を除く): 153777

約数列:

[1, 3, 9, 11, 13, 33, 39, 99, 117, 143, 169, 429, 507, 1287, 1521, 1859, 2197, 5577, 6591, 16731, 19773, 24167, 72501, 217503]

約数ペア:

[(1, 217503), (3, 72501), (9, 24167), (11, 19773), (13, 16731), (33, 6591), (39, 5577), (99, 2197), (117, 1859), (143, 1521), (169, 1287), (429, 507)]