31428081

素因数分解:

$3^4\times {\mathrm{103}}^1\times {\mathrm{3767}}^1$

素因数の和:3882

約数の個数: 20

約数和(自身を含む): 47416512

約数和(自身を除く): 15988431

約数列:

[1, 3, 9, 27, 81, 103, 309, 927, 2781, 3767, 8343, 11301, 33903, 101709, 305127, 388001, 1164003, 3492009, 10476027, 31428081]

約数ペア:

[(1, 31428081), (3, 10476027), (9, 3492009), (27, 1164003), (81, 388001), (103, 305127), (309, 101709), (927, 33903), (2781, 11301), (3767, 8343)]