2009371

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{311}}^1$

素因数の和:402

約数の個数: 16

約数和(自身を含む): 2515968

約数和(自身を除く): 506597

約数列:

[1, 7, 13, 71, 91, 311, 497, 923, 2177, 4043, 6461, 22081, 28301, 154567, 287053, 2009371]

約数ペア:

[(1, 2009371), (7, 287053), (13, 154567), (71, 28301), (91, 22081), (311, 6461), (497, 4043), (923, 2177)]