205428171

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{277231}}^1$

素因数の和:277266

約数の個数: 16

約数和(自身を含む): 310499840

約数和(自身を除く): 105071669

約数列:

[1, 3, 13, 19, 39, 57, 247, 741, 277231, 831693, 3604003, 5267389, 10812009, 15802167, 68476057, 205428171]

約数ペア:

[(1, 205428171), (3, 68476057), (13, 15802167), (19, 10812009), (39, 5267389), (57, 3604003), (247, 831693), (741, 277231)]