409648509

素因数分解:

$3^4\times {\mathrm{389}}^1\times {\mathrm{13001}}^1$

素因数の和:13402

約数の個数: 20

約数和(自身を含む): 613564380

約数和(自身を除く): 203915871

約数列:

[1, 3, 9, 27, 81, 389, 1167, 3501, 10503, 13001, 31509, 39003, 117009, 351027, 1053081, 5057389, 15172167, 45516501, 136549503, 409648509]

約数ペア:

[(1, 409648509), (3, 136549503), (9, 45516501), (27, 15172167), (81, 5057389), (389, 1053081), (1167, 351027), (3501, 117009), (10503, 39003), (13001, 31509)]