21436959

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{5297}}^1$

素因数の和:5390

約数の個数: 16

約数和(自身を含む): 30516480

約数和(自身を除く): 9079521

約数列:

[1, 3, 19, 57, 71, 213, 1349, 4047, 5297, 15891, 100643, 301929, 376087, 1128261, 7145653, 21436959]

約数ペア:

[(1, 21436959), (3, 7145653), (19, 1128261), (57, 376087), (71, 301929), (213, 100643), (1349, 15891), (4047, 5297)]