217902009

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{109}}^1\times {\mathrm{3943}}^1$

素因数の和:4081

約数の個数: 24

約数和(自身を含む): 317570880

約数和(自身を除く): 99668871

約数列:

[1, 3, 13, 39, 109, 169, 327, 507, 1417, 3943, 4251, 11829, 18421, 51259, 55263, 153777, 429787, 666367, 1289361, 1999101, 5587231, 16761693, 72634003, 217902009]

約数ペア:

[(1, 217902009), (3, 72634003), (13, 16761693), (39, 5587231), (109, 1999101), (169, 1289361), (327, 666367), (507, 429787), (1417, 153777), (3943, 55263), (4251, 51259), (11829, 18421)]