20472004

素因数分解:

$2^2\times 7^2\times {\mathrm{149}}^1\times {\mathrm{701}}^1$

素因数の和:868

約数の個数: 36

約数和(自身を含む): 42014700

約数和(自身を除く): 21542696

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 149, 196, 298, 596, 701, 1043, 1402, 2086, 2804, 4172, 4907, 7301, 9814, 14602, 19628, 29204, 34349, 68698, 104449, 137396, 208898, 417796, 731143, 1462286, 2924572, 5118001, 10236002, 20472004]

約数ペア:

[(1, 20472004), (2, 10236002), (4, 5118001), (7, 2924572), (14, 1462286), (28, 731143), (49, 417796), (98, 208898), (149, 137396), (196, 104449), (298, 68698), (596, 34349), (701, 29204), (1043, 19628), (1402, 14602), (2086, 9814), (2804, 7301), (4172, 4907)]