21013174

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{439}}^1$

素因数の和:724

約数の個数: 32

約数和(自身を含む): 39029760

約数和(自身を除く): 18016586

約数列:

[1, 2, 7, 13, 14, 26, 91, 182, 263, 439, 526, 878, 1841, 3073, 3419, 3682, 5707, 6146, 6838, 11414, 23933, 39949, 47866, 79898, 115457, 230914, 808199, 1500941, 1616398, 3001882, 10506587, 21013174]

約数ペア:

[(1, 21013174), (2, 10506587), (7, 3001882), (13, 1616398), (14, 1500941), (26, 808199), (91, 230914), (182, 115457), (263, 79898), (439, 47866), (526, 39949), (878, 23933), (1841, 11414), (3073, 6838), (3419, 6146), (3682, 5707)]