21418175

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{193}}^2$

素因数の和:419

約数の個数: 18

約数和(自身を含む): 27857592

約数和(自身を除く): 6439417

約数列:

[1, 5, 23, 25, 115, 193, 575, 965, 4439, 4825, 22195, 37249, 110975, 186245, 856727, 931225, 4283635, 21418175]

約数ペア:

[(1, 21418175), (5, 4283635), (23, 931225), (25, 856727), (115, 186245), (193, 110975), (575, 37249), (965, 22195), (4439, 4825)]