21808263

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{283}}^1\times {\mathrm{1511}}^1$

素因数の和:1814

約数の個数: 16

約数和(自身を含む): 30917376

約数和(自身を除く): 9109113

約数列:

[1, 3, 17, 51, 283, 849, 1511, 4533, 4811, 14433, 25687, 77061, 427613, 1282839, 7269421, 21808263]

約数ペア:

[(1, 21808263), (3, 7269421), (17, 1282839), (51, 427613), (283, 77061), (849, 25687), (1511, 14433), (4533, 4811)]