20456421

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{2459}}^1$

素因数の和:2568

約数の個数: 16

約数和(自身を含む): 28339200

約数和(自身を除く): 7882779

約数列:

[1, 3, 47, 59, 141, 177, 2459, 2773, 7377, 8319, 115573, 145081, 346719, 435243, 6818807, 20456421]

約数ペア:

[(1, 20456421), (3, 6818807), (47, 435243), (59, 346719), (141, 145081), (177, 115573), (2459, 8319), (2773, 7377)]