20921693

素因数分解:

${\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{2879}}^1$

素因数の和:2948

約数の個数: 12

約数和(自身を含む): 23189760

約数和(自身を除く): 2268067

約数列:

[1, 13, 43, 169, 559, 2879, 7267, 37427, 123797, 486551, 1609361, 20921693]

約数ペア:

[(1, 20921693), (13, 1609361), (43, 486551), (169, 123797), (559, 37427), (2879, 7267)]