21764055

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{30871}}^1$

素因数の和:30926

約数の個数: 16

約数和(自身を含む): 35564544

約数和(自身を除く): 13800489

約数列:

[1, 3, 5, 15, 47, 141, 235, 705, 30871, 92613, 154355, 463065, 1450937, 4352811, 7254685, 21764055]

約数ペア:

[(1, 21764055), (3, 7254685), (5, 4352811), (15, 1450937), (47, 463065), (141, 154355), (235, 92613), (705, 30871)]