19998583017

素因数分解:

$3^1\times 7^1\times {\mathrm{647}}^1\times {\mathrm{1471891}}^1$

素因数の和:1472548

約数の個数: 16

約数和(自身を含む): 30521152512

約数和(自身を除く): 10522569495

約数列:

[1, 3, 7, 21, 647, 1941, 4529, 13587, 1471891, 4415673, 10303237, 30909711, 952313477, 2856940431, 6666194339, 19998583017]

約数ペア:

[(1, 19998583017), (3, 6666194339), (7, 2856940431), (21, 952313477), (647, 30909711), (1941, 10303237), (4529, 4415673), (13587, 1471891)]