20463399

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1$

素因数の和:113

約数の個数: 72

約数和(自身を含む): 36516480

約数和(自身を除く): 16053081

約数列:

[1, 3, 9, 11, 19, 23, 33, 43, 57, 69, 99, 121, 129, 171, 207, 209, 253, 363, 387, 437, 473, 627, 759, 817, 989, 1089, 1311, 1419, 1881, 2277, 2299, 2451, 2783, 2967, 3933, 4257, 4807, 5203, 6897, 7353, 8349, 8901, 8987, 10879, 14421, 15609, 18791, 20691, 25047, 26961, 32637, 43263, 46827, 52877, 56373, 80883, 97911, 98857, 119669, 158631, 169119, 206701, 296571, 359007, 475893, 620103, 889713, 1077021, 1860309, 2273711, 6821133, 20463399]

約数ペア:

[(1, 20463399), (3, 6821133), (9, 2273711), (11, 1860309), (19, 1077021), (23, 889713), (33, 620103), (43, 475893), (57, 359007), (69, 296571), (99, 206701), (121, 169119), (129, 158631), (171, 119669), (207, 98857), (209, 97911), (253, 80883), (363, 56373), (387, 52877), (437, 46827), (473, 43263), (627, 32637), (759, 26961), (817, 25047), (989, 20691), (1089, 18791), (1311, 15609), (1419, 14421), (1881, 10879), (2277, 8987), (2299, 8901), (2451, 8349), (2783, 7353), (2967, 6897), (3933, 5203), (4257, 4807)]