20006487

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{661}}^1$

素因数の和:748

約数の個数: 32

約数和(自身を含む): 31776000

約数和(自身を除く): 11769513

約数列:

[1, 3, 9, 19, 27, 57, 59, 171, 177, 513, 531, 661, 1121, 1593, 1983, 3363, 5949, 10089, 12559, 17847, 30267, 37677, 38999, 113031, 116997, 339093, 350991, 740981, 1052973, 2222943, 6668829, 20006487]

約数ペア:

[(1, 20006487), (3, 6668829), (9, 2222943), (19, 1052973), (27, 740981), (57, 350991), (59, 339093), (171, 116997), (177, 113031), (513, 38999), (531, 37677), (661, 30267), (1121, 17847), (1593, 12559), (1983, 10089), (3363, 5949)]