18874277

素因数分解:

${\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{113}}^1\times {\mathrm{149}}^1$

素因数の和:340

約数の個数: 16

約数和(自身を含む): 20520000

約数和(自身を除く): 1645723

約数列:

[1, 19, 59, 113, 149, 1121, 2147, 2831, 6667, 8791, 16837, 126673, 167029, 319903, 993383, 18874277]

約数ペア:

[(1, 18874277), (19, 993383), (59, 319903), (113, 167029), (149, 126673), (1121, 16837), (2147, 8791), (2831, 6667)]