20016973

素因数分解:

${\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{197}}^1$

素因数の和:396

約数の個数: 16

約数和(自身を含む): 21954240

約数和(自身を除く): 1937267

約数列:

[1, 17, 43, 139, 197, 731, 2363, 3349, 5977, 8471, 27383, 101609, 144007, 465511, 1177469, 20016973]

約数ペア:

[(1, 20016973), (17, 1177469), (43, 465511), (139, 144007), (197, 101609), (731, 27383), (2363, 8471), (3349, 5977)]