19982885

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{10601}}^1$

素因数の和:10648

約数の個数: 16

約数和(自身を含む): 26717040

約数和(自身を除く): 6734155

約数列:

[1, 5, 13, 29, 65, 145, 377, 1885, 10601, 53005, 137813, 307429, 689065, 1537145, 3996577, 19982885]

約数ペア:

[(1, 19982885), (5, 3996577), (13, 1537145), (29, 689065), (65, 307429), (145, 137813), (377, 53005), (1885, 10601)]