21000296988

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{947}}^1\times {\mathrm{1931}}^1$

素因数の和:2928

約数の個数: 144

約数和(自身を含む): 60001119360

約数和(自身を除く): 39000822372

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 29, 33, 36, 44, 58, 66, 87, 99, 116, 132, 174, 198, 261, 319, 348, 396, 522, 638, 947, 957, 1044, 1276, 1894, 1914, 1931, 2841, 2871, 3788, 3828, 3862, 5682, 5742, 5793, 7724, 8523, 10417, 11364, 11484, 11586, 17046, 17379, 20834, 21241, 23172, 27463, 31251, 34092, 34758, 41668, 42482, 54926, 55999, 62502, 63723, 69516, 82389, 84964, 93753, 109852, 111998, 125004, 127446, 164778, 167997, 187506, 191169, 223996, 247167, 254892, 302093, 329556, 335994, 375012, 382338, 494334, 503991, 604186, 615989, 671988, 764676, 906279, 988668, 1007982, 1208372, 1231978, 1812558, 1828657, 1847967, 2015964, 2463956, 2718837, 3625116, 3657314, 3695934, 5437674, 5485971, 5543901, 7314628, 7391868, 10875348, 10971942, 11087802, 16457913, 20115227, 21943884, 22175604, 32915826, 40230454, 53031053, 60345681, 65831652, 80460908, 106062106, 120691362, 159093159, 181037043, 212124212, 241382724, 318186318, 362074086, 477279477, 583341583, 636372636, 724148172, 954558954, 1166683166, 1750024749, 1909117908, 2333366332, 3500049498, 5250074247, 7000098996, 10500148494, 21000296988]

約数ペア:

[(1, 21000296988), (2, 10500148494), (3, 7000098996), (4, 5250074247), (6, 3500049498), (9, 2333366332), (11, 1909117908), (12, 1750024749), (18, 1166683166), (22, 954558954), (29, 724148172), (33, 636372636), (36, 583341583), (44, 477279477), (58, 362074086), (66, 318186318), (87, 241382724), (99, 212124212), (116, 181037043), (132, 159093159), (174, 120691362), (198, 106062106), (261, 80460908), (319, 65831652), (348, 60345681), (396, 53031053), (522, 40230454), (638, 32915826), (947, 22175604), (957, 21943884), (1044, 20115227), (1276, 16457913), (1894, 11087802), (1914, 10971942), (1931, 10875348), (2841, 7391868), (2871, 7314628), (3788, 5543901), (3828, 5485971), (3862, 5437674), (5682, 3695934), (5742, 3657314), (5793, 3625116), (7724, 2718837), (8523, 2463956), (10417, 2015964), (11364, 1847967), (11484, 1828657), (11586, 1812558), (17046, 1231978), (17379, 1208372), (20834, 1007982), (21241, 988668), (23172, 906279), (27463, 764676), (31251, 671988), (34092, 615989), (34758, 604186), (41668, 503991), (42482, 494334), (54926, 382338), (55999, 375012), (62502, 335994), (63723, 329556), (69516, 302093), (82389, 254892), (84964, 247167), (93753, 223996), (109852, 191169), (111998, 187506), (125004, 167997), (127446, 164778)]