21494967

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{5351}}^1$

素因数の和:5470

約数の個数: 16

約数和(自身を含む): 31170048

約数和(自身を除く): 9675081

約数列:

[1, 3, 13, 39, 103, 309, 1339, 4017, 5351, 16053, 69563, 208689, 551153, 1653459, 7164989, 21494967]

約数ペア:

[(1, 21494967), (3, 7164989), (13, 1653459), (39, 551153), (103, 208689), (309, 69563), (1339, 16053), (4017, 5351)]