509409

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{331}}^1$

素因数の和:362

約数の個数: 20

約数和(自身を含む): 803440

約数和(自身を除く): 294031

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 331, 513, 993, 1539, 2979, 6289, 8937, 18867, 26811, 56601, 169803, 509409]

約数ペア:

[(1, 509409), (3, 169803), (9, 56601), (19, 26811), (27, 18867), (57, 8937), (81, 6289), (171, 2979), (331, 1539), (513, 993)]