20961867

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{14173}}^1$

素因数の和:14222

約数の個数: 16

約数和(自身を含む): 30615840

約数和(自身を除く): 9653973

約数列:

[1, 3, 17, 29, 51, 87, 493, 1479, 14173, 42519, 240941, 411017, 722823, 1233051, 6987289, 20961867]

約数ペア:

[(1, 20961867), (3, 6987289), (17, 1233051), (29, 722823), (51, 411017), (87, 240941), (493, 42519), (1479, 14173)]