21084160

素因数分解:

$2^{11}\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:127

約数の個数: 96

約数和(自身を含む): 53071200

約数和(自身を除く): 31987040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 71, 80, 116, 128, 142, 145, 160, 232, 256, 284, 290, 320, 355, 464, 512, 568, 580, 640, 710, 928, 1024, 1136, 1160, 1280, 1420, 1856, 2048, 2059, 2272, 2320, 2560, 2840, 3712, 4118, 4544, 4640, 5120, 5680, 7424, 8236, 9088, 9280, 10240, 10295, 11360, 14848, 16472, 18176, 18560, 20590, 22720, 29696, 32944, 36352, 37120, 41180, 45440, 59392, 65888, 72704, 74240, 82360, 90880, 131776, 145408, 148480, 164720, 181760, 263552, 296960, 329440, 363520, 527104, 658880, 727040, 1054208, 1317760, 2108416, 2635520, 4216832, 5271040, 10542080, 21084160]

約数ペア:

[(1, 21084160), (2, 10542080), (4, 5271040), (5, 4216832), (8, 2635520), (10, 2108416), (16, 1317760), (20, 1054208), (29, 727040), (32, 658880), (40, 527104), (58, 363520), (64, 329440), (71, 296960), (80, 263552), (116, 181760), (128, 164720), (142, 148480), (145, 145408), (160, 131776), (232, 90880), (256, 82360), (284, 74240), (290, 72704), (320, 65888), (355, 59392), (464, 45440), (512, 41180), (568, 37120), (580, 36352), (640, 32944), (710, 29696), (928, 22720), (1024, 20590), (1136, 18560), (1160, 18176), (1280, 16472), (1420, 14848), (1856, 11360), (2048, 10295), (2059, 10240), (2272, 9280), (2320, 9088), (2560, 8236), (2840, 7424), (3712, 5680), (4118, 5120), (4544, 4640)]