21500160

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{509}}^1$

素因数の和:544

約数の個数: 144

約数和(自身を含む): 75055680

約数和(自身を除く): 53555520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 44, 48, 55, 60, 64, 66, 80, 88, 96, 110, 120, 128, 132, 160, 165, 176, 192, 220, 240, 256, 264, 320, 330, 352, 384, 440, 480, 509, 528, 640, 660, 704, 768, 880, 960, 1018, 1056, 1280, 1320, 1408, 1527, 1760, 1920, 2036, 2112, 2545, 2640, 2816, 3054, 3520, 3840, 4072, 4224, 5090, 5280, 5599, 6108, 7040, 7635, 8144, 8448, 10180, 10560, 11198, 12216, 14080, 15270, 16288, 16797, 20360, 21120, 22396, 24432, 27995, 30540, 32576, 33594, 40720, 42240, 44792, 48864, 55990, 61080, 65152, 67188, 81440, 83985, 89584, 97728, 111980, 122160, 130304, 134376, 162880, 167970, 179168, 195456, 223960, 244320, 268752, 325760, 335940, 358336, 390912, 447920, 488640, 537504, 651520, 671880, 716672, 895840, 977280, 1075008, 1343760, 1433344, 1791680, 1954560, 2150016, 2687520, 3583360, 4300032, 5375040, 7166720, 10750080, 21500160]

約数ペア:

[(1, 21500160), (2, 10750080), (3, 7166720), (4, 5375040), (5, 4300032), (6, 3583360), (8, 2687520), (10, 2150016), (11, 1954560), (12, 1791680), (15, 1433344), (16, 1343760), (20, 1075008), (22, 977280), (24, 895840), (30, 716672), (32, 671880), (33, 651520), (40, 537504), (44, 488640), (48, 447920), (55, 390912), (60, 358336), (64, 335940), (66, 325760), (80, 268752), (88, 244320), (96, 223960), (110, 195456), (120, 179168), (128, 167970), (132, 162880), (160, 134376), (165, 130304), (176, 122160), (192, 111980), (220, 97728), (240, 89584), (256, 83985), (264, 81440), (320, 67188), (330, 65152), (352, 61080), (384, 55990), (440, 48864), (480, 44792), (509, 42240), (528, 40720), (640, 33594), (660, 32576), (704, 30540), (768, 27995), (880, 24432), (960, 22396), (1018, 21120), (1056, 20360), (1280, 16797), (1320, 16288), (1408, 15270), (1527, 14080), (1760, 12216), (1920, 11198), (2036, 10560), (2112, 10180), (2545, 8448), (2640, 8144), (2816, 7635), (3054, 7040), (3520, 6108), (3840, 5599), (4072, 5280), (4224, 5090)]