21027125

素因数分解:

$5^3\times 7^2\times {\mathrm{3433}}^1$

素因数の和:3462

約数の個数: 24

約数和(自身を含む): 30535128

約数和(自身を除く): 9508003

約数列:

[1, 5, 7, 25, 35, 49, 125, 175, 245, 875, 1225, 3433, 6125, 17165, 24031, 85825, 120155, 168217, 429125, 600775, 841085, 3003875, 4205425, 21027125]

約数ペア:

[(1, 21027125), (5, 4205425), (7, 3003875), (25, 841085), (35, 600775), (49, 429125), (125, 168217), (175, 120155), (245, 85825), (875, 24031), (1225, 17165), (3433, 6125)]