20481209

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{1579}}^1$

素因数の和:1712

約数の個数: 16

約数和(自身を含む): 25027200

約数和(自身を除く): 4545991

約数列:

[1, 7, 17, 109, 119, 763, 1579, 1853, 11053, 12971, 26843, 172111, 187901, 1204777, 2925887, 20481209]

約数ペア:

[(1, 20481209), (7, 2925887), (17, 1204777), (109, 187901), (119, 172111), (763, 26843), (1579, 12971), (1853, 11053)]