78840021

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{6761}}^1$

素因数の和:6813

約数の個数: 24

約数和(自身を含む): 118794816

約数和(自身を除く): 39954795

約数列:

[1, 3, 13, 23, 39, 69, 169, 299, 507, 897, 3887, 6761, 11661, 20283, 87893, 155503, 263679, 466509, 1142609, 2021539, 3427827, 6064617, 26280007, 78840021]

約数ペア:

[(1, 78840021), (3, 26280007), (13, 6064617), (23, 3427827), (39, 2021539), (69, 1142609), (169, 466509), (299, 263679), (507, 155503), (897, 87893), (3887, 20283), (6761, 11661)]