18972075

素因数分解:

$3^1\times 5^2\times {\mathrm{131}}^1\times {\mathrm{1931}}^1$

素因数の和:2075

約数の個数: 24

約数和(自身を含む): 31622976

約数和(自身を除く): 12650901

約数列:

[1, 3, 5, 15, 25, 75, 131, 393, 655, 1931, 1965, 3275, 5793, 9655, 9825, 28965, 48275, 144825, 252961, 758883, 1264805, 3794415, 6324025, 18972075]

約数ペア:

[(1, 18972075), (3, 6324025), (5, 3794415), (15, 1264805), (25, 758883), (75, 252961), (131, 144825), (393, 48275), (655, 28965), (1931, 9825), (1965, 9655), (3275, 5793)]