19918998

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{3469}}^1$

素因数の和:3517

約数の個数: 48

約数和(自身を含む): 48718800

約数和(自身を除く): 28799802

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 29, 33, 58, 66, 87, 99, 174, 198, 261, 319, 522, 638, 957, 1914, 2871, 3469, 5742, 6938, 10407, 20814, 31221, 38159, 62442, 76318, 100601, 114477, 201202, 228954, 301803, 343431, 603606, 686862, 905409, 1106611, 1810818, 2213222, 3319833, 6639666, 9959499, 19918998]

約数ペア:

[(1, 19918998), (2, 9959499), (3, 6639666), (6, 3319833), (9, 2213222), (11, 1810818), (18, 1106611), (22, 905409), (29, 686862), (33, 603606), (58, 343431), (66, 301803), (87, 228954), (99, 201202), (174, 114477), (198, 100601), (261, 76318), (319, 62442), (522, 38159), (638, 31221), (957, 20814), (1914, 10407), (2871, 6938), (3469, 5742)]