20121688503

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{6781}}^1$

素因数の和:6917

約数の個数: 96

約数和(自身を含む): 36451351040

約数和(自身を除く): 16329662537

約数列:

[1, 3, 7, 9, 19, 21, 37, 57, 63, 67, 111, 133, 171, 201, 259, 333, 399, 469, 603, 703, 777, 1197, 1273, 1407, 2109, 2331, 2479, 3819, 4221, 4921, 6327, 6781, 7437, 8911, 11457, 14763, 17353, 20343, 22311, 26733, 44289, 47101, 47467, 52059, 61029, 80199, 128839, 141303, 142401, 156177, 250897, 329707, 386517, 423909, 427203, 454327, 752691, 901873, 989121, 1159551, 1362981, 1756279, 2258073, 2705619, 2967363, 3180289, 4088943, 4767043, 5268837, 8116857, 8632213, 9540867, 14301129, 15806511, 16810099, 25896639, 28622601, 33369301, 42903387, 50430297, 60425491, 77689917, 100107903, 117670693, 151290891, 181276473, 300323709, 319391881, 353012079, 543829419, 958175643, 1059036237, 2235743167, 2874526929, 6707229501, 20121688503]

約数ペア:

[(1, 20121688503), (3, 6707229501), (7, 2874526929), (9, 2235743167), (19, 1059036237), (21, 958175643), (37, 543829419), (57, 353012079), (63, 319391881), (67, 300323709), (111, 181276473), (133, 151290891), (171, 117670693), (201, 100107903), (259, 77689917), (333, 60425491), (399, 50430297), (469, 42903387), (603, 33369301), (703, 28622601), (777, 25896639), (1197, 16810099), (1273, 15806511), (1407, 14301129), (2109, 9540867), (2331, 8632213), (2479, 8116857), (3819, 5268837), (4221, 4767043), (4921, 4088943), (6327, 3180289), (6781, 2967363), (7437, 2705619), (8911, 2258073), (11457, 1756279), (14763, 1362981), (17353, 1159551), (20343, 989121), (22311, 901873), (26733, 752691), (44289, 454327), (47101, 427203), (47467, 423909), (52059, 386517), (61029, 329707), (80199, 250897), (128839, 156177), (141303, 142401)]