20657415

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{32027}}^1$

素因数の和:32078

約数の個数: 16

約数和(自身を含む): 33821568

約数和(自身を除く): 13164153

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 32027, 96081, 160135, 480405, 1377161, 4131483, 6885805, 20657415]

約数ペア:

[(1, 20657415), (3, 6885805), (5, 4131483), (15, 1377161), (43, 480405), (129, 160135), (215, 96081), (645, 32027)]