78381999

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{42073}}^1$

素因数の和:42108

約数の個数: 20

約数和(自身を含む): 122182896

約数和(自身を除く): 43800897

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 42073, 126219, 378657, 967679, 1135971, 2903037, 3407913, 8709111, 26127333, 78381999]

約数ペア:

[(1, 78381999), (3, 26127333), (9, 8709111), (23, 3407913), (27, 2903037), (69, 1135971), (81, 967679), (207, 378657), (621, 126219), (1863, 42073)]