20538309

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{4177}}^1$

素因数の和:4340

約数の個数: 16

約数和(自身を含む): 30081600

約数和(自身を除く): 9543291

約数列:

[1, 3, 11, 33, 149, 447, 1639, 4177, 4917, 12531, 45947, 137841, 622373, 1867119, 6846103, 20538309]

約数ペア:

[(1, 20538309), (3, 6846103), (11, 1867119), (33, 622373), (149, 137841), (447, 45947), (1639, 12531), (4177, 4917)]