21580752

素因数分解:

$2^4\times 3^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{499}}^1$

素因数の和:580

約数の個数: 80

約数和(自身を含む): 60264000

約数和(自身を除く): 38683248

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 34, 48, 51, 53, 68, 102, 106, 136, 159, 204, 212, 272, 318, 408, 424, 499, 636, 816, 848, 901, 998, 1272, 1497, 1802, 1996, 2544, 2703, 2994, 3604, 3992, 5406, 5988, 7208, 7984, 8483, 10812, 11976, 14416, 16966, 21624, 23952, 25449, 26447, 33932, 43248, 50898, 52894, 67864, 79341, 101796, 105788, 135728, 158682, 203592, 211576, 317364, 407184, 423152, 449599, 634728, 899198, 1269456, 1348797, 1798396, 2697594, 3596792, 5395188, 7193584, 10790376, 21580752]

約数ペア:

[(1, 21580752), (2, 10790376), (3, 7193584), (4, 5395188), (6, 3596792), (8, 2697594), (12, 1798396), (16, 1348797), (17, 1269456), (24, 899198), (34, 634728), (48, 449599), (51, 423152), (53, 407184), (68, 317364), (102, 211576), (106, 203592), (136, 158682), (159, 135728), (204, 105788), (212, 101796), (272, 79341), (318, 67864), (408, 52894), (424, 50898), (499, 43248), (636, 33932), (816, 26447), (848, 25449), (901, 23952), (998, 21624), (1272, 16966), (1497, 14416), (1802, 11976), (1996, 10812), (2544, 8483), (2703, 7984), (2994, 7208), (3604, 5988), (3992, 5406)]