20990582

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{6427}}^1$

素因数の和:6523

約数の個数: 16

約数和(自身を含む): 33322752

約数和(自身を除く): 12332170

約数列:

[1, 2, 23, 46, 71, 142, 1633, 3266, 6427, 12854, 147821, 295642, 456317, 912634, 10495291, 20990582]

約数ペア:

[(1, 20990582), (2, 10495291), (23, 912634), (46, 456317), (71, 295642), (142, 147821), (1633, 12854), (3266, 6427)]