20121375

素因数分解:

$3^1\times 5^3\times {\mathrm{53657}}^1$

素因数の和:53675

約数の個数: 16

約数和(自身を含む): 33482592

約数和(自身を除く): 13361217

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 53657, 160971, 268285, 804855, 1341425, 4024275, 6707125, 20121375]

約数ペア:

[(1, 20121375), (3, 6707125), (5, 4024275), (15, 1341425), (25, 804855), (75, 268285), (125, 160971), (375, 53657)]