20783125905

素因数分解:

$3^1\times 5^1\times {\mathrm{2141}}^1\times {\mathrm{647147}}^1$

素因数の和:649296

約数の個数: 16

約数和(自身を含む): 33268584384

約数和(自身を除く): 12485458479

約数列:

[1, 3, 5, 15, 2141, 6423, 10705, 32115, 647147, 1941441, 3235735, 9707205, 1385541727, 4156625181, 6927708635, 20783125905]

約数ペア:

[(1, 20783125905), (3, 6927708635), (5, 4156625181), (15, 1385541727), (2141, 9707205), (6423, 3235735), (10705, 1941441), (32115, 647147)]