19211049

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1$

素因数の和:123

約数の個数: 72

約数和(自身を含む): 34856640

約数和(自身を除く): 15645591

約数列:

[1, 3, 9, 11, 13, 23, 33, 39, 59, 69, 99, 117, 121, 143, 177, 207, 253, 299, 363, 429, 531, 649, 759, 767, 897, 1089, 1287, 1357, 1573, 1947, 2277, 2301, 2691, 2783, 3289, 4071, 4719, 5841, 6903, 7139, 8349, 8437, 9867, 12213, 14157, 14927, 17641, 21417, 25047, 25311, 29601, 36179, 44781, 52923, 64251, 75933, 92807, 108537, 134343, 158769, 164197, 194051, 278421, 325611, 492591, 582153, 835263, 1477773, 1746459, 2134561, 6403683, 19211049]

約数ペア:

[(1, 19211049), (3, 6403683), (9, 2134561), (11, 1746459), (13, 1477773), (23, 835263), (33, 582153), (39, 492591), (59, 325611), (69, 278421), (99, 194051), (117, 164197), (121, 158769), (143, 134343), (177, 108537), (207, 92807), (253, 75933), (299, 64251), (363, 52923), (429, 44781), (531, 36179), (649, 29601), (759, 25311), (767, 25047), (897, 21417), (1089, 17641), (1287, 14927), (1357, 14157), (1573, 12213), (1947, 9867), (2277, 8437), (2301, 8349), (2691, 7139), (2783, 6903), (3289, 5841), (4071, 4719)]