31866129

素因数分解:

$3^4\times {\mathrm{197}}^1\times {\mathrm{1997}}^1$

素因数の和:2206

約数の個数: 20

約数和(自身を含む): 47868084

約数和(自身を除く): 16001955

約数列:

[1, 3, 9, 27, 81, 197, 591, 1773, 1997, 5319, 5991, 15957, 17973, 53919, 161757, 393409, 1180227, 3540681, 10622043, 31866129]

約数ペア:

[(1, 31866129), (3, 10622043), (9, 3540681), (27, 1180227), (81, 393409), (197, 161757), (591, 53919), (1773, 17973), (1997, 15957), (5319, 5991)]