1219141

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{223}}^1$

素因数の和:312

約数の個数: 16

約数和(自身を含む): 1548288

約数和(自身を除く): 329147

約数列:

[1, 7, 11, 71, 77, 223, 497, 781, 1561, 2453, 5467, 15833, 17171, 110831, 174163, 1219141]

約数ペア:

[(1, 1219141), (7, 174163), (11, 110831), (71, 17171), (77, 15833), (223, 5467), (497, 2453), (781, 1561)]