21152320

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:121

約数の個数: 168

約数和(自身を含む): 62544960

約数和(自身を除く): 41392640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 49, 56, 64, 70, 71, 76, 80, 95, 98, 112, 133, 140, 142, 152, 160, 190, 196, 224, 245, 266, 280, 284, 304, 320, 355, 380, 392, 448, 490, 497, 532, 560, 568, 608, 665, 710, 760, 784, 931, 980, 994, 1064, 1120, 1136, 1216, 1330, 1349, 1420, 1520, 1568, 1862, 1960, 1988, 2128, 2240, 2272, 2485, 2660, 2698, 2840, 3040, 3136, 3479, 3724, 3920, 3976, 4256, 4544, 4655, 4970, 5320, 5396, 5680, 6080, 6745, 6958, 7448, 7840, 7952, 8512, 9310, 9443, 9940, 10640, 10792, 11360, 13490, 13916, 14896, 15680, 15904, 17395, 18620, 18886, 19880, 21280, 21584, 22720, 26980, 27832, 29792, 31808, 34790, 37240, 37772, 39760, 42560, 43168, 47215, 53960, 55664, 59584, 66101, 69580, 74480, 75544, 79520, 86336, 94430, 107920, 111328, 132202, 139160, 148960, 151088, 159040, 188860, 215840, 222656, 264404, 278320, 297920, 302176, 330505, 377720, 431680, 528808, 556640, 604352, 661010, 755440, 1057616, 1113280, 1322020, 1510880, 2115232, 2644040, 3021760, 4230464, 5288080, 10576160, 21152320]

約数ペア:

[(1, 21152320), (2, 10576160), (4, 5288080), (5, 4230464), (7, 3021760), (8, 2644040), (10, 2115232), (14, 1510880), (16, 1322020), (19, 1113280), (20, 1057616), (28, 755440), (32, 661010), (35, 604352), (38, 556640), (40, 528808), (49, 431680), (56, 377720), (64, 330505), (70, 302176), (71, 297920), (76, 278320), (80, 264404), (95, 222656), (98, 215840), (112, 188860), (133, 159040), (140, 151088), (142, 148960), (152, 139160), (160, 132202), (190, 111328), (196, 107920), (224, 94430), (245, 86336), (266, 79520), (280, 75544), (284, 74480), (304, 69580), (320, 66101), (355, 59584), (380, 55664), (392, 53960), (448, 47215), (490, 43168), (497, 42560), (532, 39760), (560, 37772), (568, 37240), (608, 34790), (665, 31808), (710, 29792), (760, 27832), (784, 26980), (931, 22720), (980, 21584), (994, 21280), (1064, 19880), (1120, 18886), (1136, 18620), (1216, 17395), (1330, 15904), (1349, 15680), (1420, 14896), (1520, 13916), (1568, 13490), (1862, 11360), (1960, 10792), (1988, 10640), (2128, 9940), (2240, 9443), (2272, 9310), (2485, 8512), (2660, 7952), (2698, 7840), (2840, 7448), (3040, 6958), (3136, 6745), (3479, 6080), (3724, 5680), (3920, 5396), (3976, 5320), (4256, 4970), (4544, 4655)]