400878477

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{215179}}^1$

素因数の和:215214

約数の個数: 20

約数和(自身を含む): 624882720

約数和(自身を除く): 224004243

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 215179, 645537, 1936611, 4949117, 5809833, 14847351, 17429499, 44542053, 133626159, 400878477]

約数ペア:

[(1, 400878477), (3, 133626159), (9, 44542053), (23, 17429499), (27, 14847351), (69, 5809833), (81, 4949117), (207, 1936611), (621, 645537), (1863, 215179)]