20931225

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{39869}}^1$

素因数の和:39889

約数の個数: 24

約数和(自身を含む): 39551040

約数和(自身を除く): 18619815

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 175, 525, 39869, 119607, 199345, 279083, 598035, 837249, 996725, 1395415, 2990175, 4186245, 6977075, 20931225]

約数ペア:

[(1, 20931225), (3, 6977075), (5, 4186245), (7, 2990175), (15, 1395415), (21, 996725), (25, 837249), (35, 598035), (75, 279083), (105, 199345), (175, 119607), (525, 39869)]