81408573

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{431}}^1\times {\mathrm{677}}^1$

素因数の和:1145

約数の個数: 24

約数和(自身を含む): 121844736

約数和(自身を除く): 40436163

約数列:

[1, 3, 9, 31, 93, 279, 431, 677, 1293, 2031, 3879, 6093, 13361, 20987, 40083, 62961, 120249, 188883, 291787, 875361, 2626083, 9045397, 27136191, 81408573]

約数ペア:

[(1, 81408573), (3, 27136191), (9, 9045397), (31, 2626083), (93, 875361), (279, 291787), (431, 188883), (677, 120249), (1293, 62961), (2031, 40083), (3879, 20987), (6093, 13361)]