18804357

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{769}}^1$

素因数の和:818

約数の個数: 48

約数和(自身を含む): 33633600

約数和(自身を除く): 14829243

約数列:

[1, 3, 9, 11, 13, 19, 33, 39, 57, 99, 117, 143, 171, 209, 247, 429, 627, 741, 769, 1287, 1881, 2223, 2307, 2717, 6921, 8151, 8459, 9997, 14611, 24453, 25377, 29991, 43833, 76131, 89973, 109967, 131499, 160721, 189943, 329901, 482163, 569829, 989703, 1446489, 1709487, 2089373, 6268119, 18804357]

約数ペア:

[(1, 18804357), (3, 6268119), (9, 2089373), (11, 1709487), (13, 1446489), (19, 989703), (33, 569829), (39, 482163), (57, 329901), (99, 189943), (117, 160721), (143, 131499), (171, 109967), (209, 89973), (247, 76131), (429, 43833), (627, 29991), (741, 25377), (769, 24453), (1287, 14611), (1881, 9997), (2223, 8459), (2307, 8151), (2717, 6921)]