28270665

素因数分解:

$3^2\times 5^1\times {\mathrm{647}}^1\times {\mathrm{971}}^1$

素因数の和:1629

約数の個数: 24

約数和(自身を含む): 49128768

約数和(自身を除く): 20858103

約数列:

[1, 3, 5, 9, 15, 45, 647, 971, 1941, 2913, 3235, 4855, 5823, 8739, 9705, 14565, 29115, 43695, 628237, 1884711, 3141185, 5654133, 9423555, 28270665]

約数ペア:

[(1, 28270665), (3, 9423555), (5, 5654133), (9, 3141185), (15, 1884711), (45, 628237), (647, 43695), (971, 29115), (1941, 14565), (2913, 9705), (3235, 8739), (4855, 5823)]