20099397

素因数分解:

$3^1\times {\mathrm{19}}^2\times {\mathrm{67}}^1\times {\mathrm{277}}^1$

素因数の和:385

約数の個数: 24

約数和(自身を含む): 28809696

約数和(自身を除く): 8710299

約数列:

[1, 3, 19, 57, 67, 201, 277, 361, 831, 1083, 1273, 3819, 5263, 15789, 18559, 24187, 55677, 72561, 99997, 299991, 352621, 1057863, 6699799, 20099397]

約数ペア:

[(1, 20099397), (3, 6699799), (19, 1057863), (57, 352621), (67, 299991), (201, 99997), (277, 72561), (361, 55677), (831, 24187), (1083, 18559), (1273, 15789), (3819, 5263)]