18879237

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{17929}}^1$

素因数の和:17954

約数の個数: 20

約数和(自身を含む): 30373420

約数和(自身を除く): 11494183

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 17929, 53787, 161361, 233077, 484083, 699231, 1452249, 2097693, 6293079, 18879237]

約数ペア:

[(1, 18879237), (3, 6293079), (9, 2097693), (13, 1452249), (27, 699231), (39, 484083), (81, 233077), (117, 161361), (351, 53787), (1053, 17929)]