217536435

素因数分解:

$3^4\times 5^1\times {\mathrm{537127}}^1$

素因数の和:537144

約数の個数: 20

約数和(自身を含む): 389954928

約数和(自身を除く): 172418493

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 537127, 1611381, 2685635, 4834143, 8056905, 14502429, 24170715, 43507287, 72512145, 217536435]

約数ペア:

[(1, 217536435), (3, 72512145), (5, 43507287), (9, 24170715), (15, 14502429), (27, 8056905), (45, 4834143), (81, 2685635), (135, 1611381), (405, 537127)]