19864875

素因数分解:

$3^1\times 5^3\times {\mathrm{52973}}^1$

素因数の和:52991

約数の個数: 16

約数和(自身を含む): 33055776

約数和(自身を除く): 13190901

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 52973, 158919, 264865, 794595, 1324325, 3972975, 6621625, 19864875]

約数ペア:

[(1, 19864875), (3, 6621625), (5, 3972975), (15, 1324325), (25, 794595), (75, 264865), (125, 158919), (375, 52973)]