17955119

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{397}}^1$

素因数の和:495

約数の個数: 24

約数和(自身を含む): 22867488

約数和(自身を除く): 4912369

約数列:

[1, 7, 13, 49, 71, 91, 397, 497, 637, 923, 2779, 3479, 5161, 6461, 19453, 28187, 36127, 45227, 197309, 252889, 366431, 1381163, 2565017, 17955119]

約数ペア:

[(1, 17955119), (7, 2565017), (13, 1381163), (49, 366431), (71, 252889), (91, 197309), (397, 45227), (497, 36127), (637, 28187), (923, 19453), (2779, 6461), (3479, 5161)]