3969189

素因数分解:

$3^3\times 7^1\times {\mathrm{21001}}^1$

素因数の和:21017

約数の個数: 16

約数和(自身を含む): 6720640

約数和(自身を除く): 2751451

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 21001, 63003, 147007, 189009, 441021, 567027, 1323063, 3969189]

約数ペア:

[(1, 3969189), (3, 1323063), (7, 567027), (9, 441021), (21, 189009), (27, 147007), (63, 63003), (189, 21001)]