21492585

素因数分解:

$3^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{3163}}^1$

素因数の和:3325

約数の個数: 24

約数和(自身を含む): 37512384

約数和(自身を除く): 16019799

約数列:

[1, 3, 5, 9, 15, 45, 151, 453, 755, 1359, 2265, 3163, 6795, 9489, 15815, 28467, 47445, 142335, 477613, 1432839, 2388065, 4298517, 7164195, 21492585]

約数ペア:

[(1, 21492585), (3, 7164195), (5, 4298517), (9, 2388065), (15, 1432839), (45, 477613), (151, 142335), (453, 47445), (755, 28467), (1359, 15815), (2265, 9489), (3163, 6795)]