19678425

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{20183}}^1$

素因数の和:20209

約数の個数: 24

約数和(自身を含む): 35039424

約数和(自身を除く): 15360999

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 325, 975, 20183, 60549, 100915, 262379, 302745, 504575, 787137, 1311895, 1513725, 3935685, 6559475, 19678425]

約数ペア:

[(1, 19678425), (3, 6559475), (5, 3935685), (13, 1513725), (15, 1311895), (25, 787137), (39, 504575), (65, 302745), (75, 262379), (195, 100915), (325, 60549), (975, 20183)]