78863139

素因数分解:

$3^4\times {\mathrm{691}}^1\times {\mathrm{1409}}^1$

素因数の和:2112

約数の個数: 20

約数和(自身を含む): 118062120

約数和(自身を除く): 39198981

約数列:

[1, 3, 9, 27, 81, 691, 1409, 2073, 4227, 6219, 12681, 18657, 38043, 55971, 114129, 973619, 2920857, 8762571, 26287713, 78863139]

約数ペア:

[(1, 78863139), (3, 26287713), (9, 8762571), (27, 2920857), (81, 973619), (691, 114129), (1409, 55971), (2073, 38043), (4227, 18657), (6219, 12681)]