18859311

素因数分解:

$3^4\times {\mathrm{157}}^1\times {\mathrm{1483}}^1$

素因数の和:1652

約数の個数: 20

約数和(自身を含む): 28371112

約数和(自身を除く): 9511801

約数列:

[1, 3, 9, 27, 81, 157, 471, 1413, 1483, 4239, 4449, 12717, 13347, 40041, 120123, 232831, 698493, 2095479, 6286437, 18859311]

約数ペア:

[(1, 18859311), (3, 6286437), (9, 2095479), (27, 698493), (81, 232831), (157, 120123), (471, 40041), (1413, 13347), (1483, 12717), (4239, 4449)]