18928351

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{389}}^1$

素因数の和:618

約数の個数: 16

約数和(自身を含む): 21621600

約数和(自身を除く): 2693249

約数列:

[1, 13, 19, 197, 247, 389, 2561, 3743, 5057, 7391, 48659, 76633, 96083, 996229, 1456027, 18928351]

約数ペア:

[(1, 18928351), (13, 1456027), (19, 996229), (197, 96083), (247, 76633), (389, 48659), (2561, 7391), (3743, 5057)]