19839895

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{2153}}^1$

素因数の和:2274

約数の個数: 16

約数和(自身を含む): 25331040

約数和(自身を除く): 5491145

約数列:

[1, 5, 19, 95, 97, 485, 1843, 2153, 9215, 10765, 40907, 204535, 208841, 1044205, 3967979, 19839895]

約数ペア:

[(1, 19839895), (5, 3967979), (19, 1044205), (95, 208841), (97, 204535), (485, 40907), (1843, 10765), (2153, 9215)]