21175475

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{283}}^1$

素因数の和:407

約数の個数: 24

約数和(自身を含む): 27362832

約数和(自身を除く): 6187357

約数列:

[1, 5, 25, 41, 73, 205, 283, 365, 1025, 1415, 1825, 2993, 7075, 11603, 14965, 20659, 58015, 74825, 103295, 290075, 516475, 847019, 4235095, 21175475]

約数ペア:

[(1, 21175475), (5, 4235095), (25, 847019), (41, 516475), (73, 290075), (205, 103295), (283, 74825), (365, 58015), (1025, 20659), (1415, 14965), (1825, 11603), (2993, 7075)]