767961

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{499}}^1$

素因数の和:530

約数の個数: 20

約数和(自身を含む): 1210000

約数和(自身を除く): 442039

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 499, 513, 1497, 1539, 4491, 9481, 13473, 28443, 40419, 85329, 255987, 767961]

約数ペア:

[(1, 767961), (3, 255987), (9, 85329), (19, 40419), (27, 28443), (57, 13473), (81, 9481), (171, 4491), (499, 1539), (513, 1497)]