17620449

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{641}}^1$

素因数の和:686

約数の個数: 48

約数和(自身を含む): 31617216

約数和(自身を除く): 13996767

約数列:

[1, 3, 7, 11, 17, 21, 33, 49, 51, 77, 119, 147, 187, 231, 357, 539, 561, 641, 833, 1309, 1617, 1923, 2499, 3927, 4487, 7051, 9163, 10897, 13461, 21153, 27489, 31409, 32691, 49357, 76279, 94227, 119867, 148071, 228837, 345499, 359601, 533953, 839069, 1036497, 1601859, 2517207, 5873483, 17620449]

約数ペア:

[(1, 17620449), (3, 5873483), (7, 2517207), (11, 1601859), (17, 1036497), (21, 839069), (33, 533953), (49, 359601), (51, 345499), (77, 228837), (119, 148071), (147, 119867), (187, 94227), (231, 76279), (357, 49357), (539, 32691), (561, 31409), (641, 27489), (833, 21153), (1309, 13461), (1617, 10897), (1923, 9163), (2499, 7051), (3927, 4487)]