28291886

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{2143}}^1$

素因数の和:2216

約数の個数: 32

約数和(自身を含む): 51867648

約数和(自身を除く): 23575762

約数列:

[1, 2, 7, 14, 23, 41, 46, 82, 161, 287, 322, 574, 943, 1886, 2143, 4286, 6601, 13202, 15001, 30002, 49289, 87863, 98578, 175726, 345023, 615041, 690046, 1230082, 2020849, 4041698, 14145943, 28291886]

約数ペア:

[(1, 28291886), (2, 14145943), (7, 4041698), (14, 2020849), (23, 1230082), (41, 690046), (46, 615041), (82, 345023), (161, 175726), (287, 98578), (322, 87863), (574, 49289), (943, 30002), (1886, 15001), (2143, 13202), (4286, 6601)]