12779385

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{19813}}^1$

素因数の和:19864

約数の個数: 16

約数和(自身を含む): 20923584

約数和(自身を除く): 8144199

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 19813, 59439, 99065, 297195, 851959, 2555877, 4259795, 12779385]

約数ペア:

[(1, 12779385), (3, 4259795), (5, 2555877), (15, 851959), (43, 297195), (129, 99065), (215, 59439), (645, 19813)]