21903670485

素因数分解:

$3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1\times {\mathrm{461}}^1$

素因数の和:665

約数の個数: 160

約数和(自身を含む): 42696605952

約数和(自身を除く): 20792935467

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 67, 81, 85, 103, 135, 153, 201, 255, 309, 335, 405, 459, 461, 515, 603, 765, 927, 1005, 1139, 1377, 1383, 1545, 1751, 1809, 2295, 2305, 2781, 3015, 3417, 4149, 4635, 5253, 5427, 5695, 6885, 6901, 6915, 7837, 8343, 8755, 9045, 10251, 12447, 13905, 15759, 17085, 20703, 20745, 23511, 26265, 27135, 30753, 30887, 34505, 37341, 39185, 41715, 47277, 47483, 51255, 62109, 62235, 70533, 78795, 92259, 92661, 103515, 117317, 117555, 141831, 142449, 153765, 154435, 186327, 186705, 211599, 236385, 237415, 277983, 310545, 351951, 352665, 427347, 461295, 463305, 525079, 558981, 586585, 634797, 709155, 712245, 807211, 833949, 931635, 1055853, 1057995, 1282041, 1389915, 1575237, 1759755, 2136735, 2421633, 2501847, 2625395, 2794905, 3167559, 3173985, 3181361, 3846123, 4036055, 4169745, 4725711, 5279265, 6410205, 7264899, 7876185, 9502677, 9544083, 12108165, 12509235, 14177133, 15837795, 15906805, 19230615, 21794697, 23628555, 28632249, 36324495, 42531399, 47513385, 47720415, 54083137, 65384091, 70885665, 85896747, 108973485, 143161245, 162249411, 212656995, 257690241, 270415685, 326920455, 429483735, 486748233, 811247055, 1288451205, 1460244699, 2433741165, 4380734097, 7301223495, 21903670485]

約数ペア:

[(1, 21903670485), (3, 7301223495), (5, 4380734097), (9, 2433741165), (15, 1460244699), (17, 1288451205), (27, 811247055), (45, 486748233), (51, 429483735), (67, 326920455), (81, 270415685), (85, 257690241), (103, 212656995), (135, 162249411), (153, 143161245), (201, 108973485), (255, 85896747), (309, 70885665), (335, 65384091), (405, 54083137), (459, 47720415), (461, 47513385), (515, 42531399), (603, 36324495), (765, 28632249), (927, 23628555), (1005, 21794697), (1139, 19230615), (1377, 15906805), (1383, 15837795), (1545, 14177133), (1751, 12509235), (1809, 12108165), (2295, 9544083), (2305, 9502677), (2781, 7876185), (3015, 7264899), (3417, 6410205), (4149, 5279265), (4635, 4725711), (5253, 4169745), (5427, 4036055), (5695, 3846123), (6885, 3181361), (6901, 3173985), (6915, 3167559), (7837, 2794905), (8343, 2625395), (8755, 2501847), (9045, 2421633), (10251, 2136735), (12447, 1759755), (13905, 1575237), (15759, 1389915), (17085, 1282041), (20703, 1057995), (20745, 1055853), (23511, 931635), (26265, 833949), (27135, 807211), (30753, 712245), (30887, 709155), (34505, 634797), (37341, 586585), (39185, 558981), (41715, 525079), (47277, 463305), (47483, 461295), (51255, 427347), (62109, 352665), (62235, 351951), (70533, 310545), (78795, 277983), (92259, 237415), (92661, 236385), (103515, 211599), (117317, 186705), (117555, 186327), (141831, 154435), (142449, 153765)]