21967965

素因数分解:

$3^2\times 5^1\times {\mathrm{521}}^1\times {\mathrm{937}}^1$

素因数の和:1469

約数の個数: 24

約数和(自身を含む): 38191608

約数和(自身を除く): 16223643

約数列:

[1, 3, 5, 9, 15, 45, 521, 937, 1563, 2605, 2811, 4685, 4689, 7815, 8433, 14055, 23445, 42165, 488177, 1464531, 2440885, 4393593, 7322655, 21967965]

約数ペア:

[(1, 21967965), (3, 7322655), (5, 4393593), (9, 2440885), (15, 1464531), (45, 488177), (521, 42165), (937, 23445), (1563, 14055), (2605, 8433), (2811, 7815), (4685, 4689)]