21181856157

素因数分解:

$3^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{117109}}^1$

素因数の和:117168

約数の個数: 80

約数和(自身を含む): 40810492800

約数和(自身を除く): 19628636643

約数列:

[1, 3, 7, 9, 11, 21, 27, 29, 33, 63, 77, 81, 87, 99, 189, 203, 231, 261, 297, 319, 567, 609, 693, 783, 891, 957, 1827, 2079, 2233, 2349, 2871, 5481, 6237, 6699, 8613, 16443, 20097, 25839, 60291, 117109, 180873, 351327, 819763, 1053981, 1288199, 2459289, 3161943, 3396161, 3864597, 7377867, 9017393, 9485829, 10188483, 11593791, 22133601, 23773127, 27052179, 30565449, 34781373, 37357771, 66400803, 71319381, 81156537, 91696347, 104344119, 112073313, 213958143, 243469611, 261504397, 275089041, 336219939, 641874429, 730408833, 784513191, 1008659817, 1925623287, 2353539573, 3025979451, 7060618719, 21181856157]

約数ペア:

[(1, 21181856157), (3, 7060618719), (7, 3025979451), (9, 2353539573), (11, 1925623287), (21, 1008659817), (27, 784513191), (29, 730408833), (33, 641874429), (63, 336219939), (77, 275089041), (81, 261504397), (87, 243469611), (99, 213958143), (189, 112073313), (203, 104344119), (231, 91696347), (261, 81156537), (297, 71319381), (319, 66400803), (567, 37357771), (609, 34781373), (693, 30565449), (783, 27052179), (891, 23773127), (957, 22133601), (1827, 11593791), (2079, 10188483), (2233, 9485829), (2349, 9017393), (2871, 7377867), (5481, 3864597), (6237, 3396161), (6699, 3161943), (8613, 2459289), (16443, 1288199), (20097, 1053981), (25839, 819763), (60291, 351327), (117109, 180873)]