20115721395

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{5805403}}^1$

素因数の和:5805432

約数の個数: 48

約数和(自身を含む): 43470865152

約数和(自身を除く): 23355143757

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 33, 35, 45, 55, 63, 77, 99, 105, 165, 231, 315, 385, 495, 693, 1155, 3465, 5805403, 17416209, 29027015, 40637821, 52248627, 63859433, 87081045, 121913463, 191578299, 203189105, 261243135, 319297165, 365740389, 447016031, 574734897, 609567315, 957891495, 1341048093, 1828701945, 2235080155, 2873674485, 4023144279, 6705240465, 20115721395]

約数ペア:

[(1, 20115721395), (3, 6705240465), (5, 4023144279), (7, 2873674485), (9, 2235080155), (11, 1828701945), (15, 1341048093), (21, 957891495), (33, 609567315), (35, 574734897), (45, 447016031), (55, 365740389), (63, 319297165), (77, 261243135), (99, 203189105), (105, 191578299), (165, 121913463), (231, 87081045), (315, 63859433), (385, 52248627), (495, 40637821), (693, 29027015), (1155, 17416209), (3465, 5805403)]