20657379

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{293}}^1\times {\mathrm{331}}^1$

素因数の和:698

約数の個数: 16

約数和(自身を含む): 28111104

約数和(自身を除く): 7453725

約数列:

[1, 3, 71, 213, 293, 331, 879, 993, 20803, 23501, 62409, 70503, 96983, 290949, 6885793, 20657379]

約数ペア:

[(1, 20657379), (3, 6885793), (71, 290949), (213, 96983), (293, 70503), (331, 62409), (879, 23501), (993, 20803)]