20199560421

素因数分解:

$3^1\times {\mathrm{19}}^2\times {\mathrm{71}}^1\times {\mathrm{262697}}^1$

素因数の和:262809

約数の個数: 24

約数和(自身を含む): 28825326144

約数和(自身を除く): 8625765723

約数列:

[1, 3, 19, 57, 71, 213, 361, 1083, 1349, 4047, 25631, 76893, 262697, 788091, 4991243, 14973729, 18651487, 55954461, 94833617, 284500851, 354378253, 1063134759, 6733186807, 20199560421]

約数ペア:

[(1, 20199560421), (3, 6733186807), (19, 1063134759), (57, 354378253), (71, 284500851), (213, 94833617), (361, 55954461), (1083, 18651487), (1349, 14973729), (4047, 4991243), (25631, 788091), (76893, 262697)]