19685991

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{653}}^1\times {\mathrm{773}}^1$

素因数の和:1442

約数の個数: 16

約数和(自身を含む): 28346976

約数和(自身を除く): 8660985

約数列:

[1, 3, 13, 39, 653, 773, 1959, 2319, 8489, 10049, 25467, 30147, 504769, 1514307, 6561997, 19685991]

約数ペア:

[(1, 19685991), (3, 6561997), (13, 1514307), (39, 504769), (653, 30147), (773, 25467), (1959, 10049), (2319, 8489)]