217500507

素因数分解:

$3^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{47293}}^1$

素因数の和:47379

約数の個数: 24

約数和(自身を含む): 363974624

約数和(自身を除く): 146474117

約数列:

[1, 3, 7, 9, 21, 63, 73, 219, 511, 657, 1533, 4599, 47293, 141879, 331051, 425637, 993153, 2979459, 3452389, 10357167, 24166723, 31071501, 72500169, 217500507]

約数ペア:

[(1, 217500507), (3, 72500169), (7, 31071501), (9, 24166723), (21, 10357167), (63, 3452389), (73, 2979459), (219, 993153), (511, 425637), (657, 331051), (1533, 141879), (4599, 47293)]