21515373

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{859}}^1$

素因数の和:910

約数の個数: 36

約数和(自身を含む): 35686560

約数和(自身を除く): 14171187

約数列:

[1, 3, 9, 11, 23, 33, 69, 99, 121, 207, 253, 363, 759, 859, 1089, 2277, 2577, 2783, 7731, 8349, 9449, 19757, 25047, 28347, 59271, 85041, 103939, 177813, 217327, 311817, 651981, 935451, 1955943, 2390597, 7171791, 21515373]

約数ペア:

[(1, 21515373), (3, 7171791), (9, 2390597), (11, 1955943), (23, 935451), (33, 651981), (69, 311817), (99, 217327), (121, 177813), (207, 103939), (253, 85041), (363, 59271), (759, 28347), (859, 25047), (1089, 19757), (2277, 9449), (2577, 8349), (2783, 7731)]