16678749

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1$

素因数の和:249

約数の個数: 32

約数和(自身を含む): 24514560

約数和(自身を除く): 7835811

約数列:

[1, 3, 23, 37, 47, 69, 111, 139, 141, 417, 851, 1081, 1739, 2553, 3197, 3243, 5143, 5217, 6533, 9591, 15429, 19599, 39997, 118289, 119991, 150259, 241721, 354867, 450777, 725163, 5559583, 16678749]

約数ペア:

[(1, 16678749), (3, 5559583), (23, 725163), (37, 450777), (47, 354867), (69, 241721), (111, 150259), (139, 119991), (141, 118289), (417, 39997), (851, 19599), (1081, 15429), (1739, 9591), (2553, 6533), (3197, 5217), (3243, 5143)]