19816845

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{28109}}^1$

素因数の和:28164

約数の個数: 16

約数和(自身を含む): 32382720

約数和(自身を除く): 12565875

約数列:

[1, 3, 5, 15, 47, 141, 235, 705, 28109, 84327, 140545, 421635, 1321123, 3963369, 6605615, 19816845]

約数ペア:

[(1, 19816845), (3, 6605615), (5, 3963369), (15, 1321123), (47, 421635), (141, 140545), (235, 84327), (705, 28109)]