20830761

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{4657}}^1$

素因数の和:4741

約数の個数: 24

約数和(自身を含む): 34879104

約数和(自身を除く): 14048343

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 4473, 4657, 13971, 32599, 41913, 97797, 293391, 330647, 991941, 2314529, 2975823, 6943587, 20830761]

約数ペア:

[(1, 20830761), (3, 6943587), (7, 2975823), (9, 2314529), (21, 991941), (63, 330647), (71, 293391), (213, 97797), (497, 41913), (639, 32599), (1491, 13971), (4473, 4657)]