21712488

素因数分解:

$2^3\times 3^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{499}}^1$

素因数の和:559

約数の個数: 96

約数和(自身を含む): 64980000

約数和(自身を除く): 43267512

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 37, 42, 49, 56, 74, 84, 98, 111, 147, 148, 168, 196, 222, 259, 294, 296, 392, 444, 499, 518, 588, 777, 888, 998, 1036, 1176, 1497, 1554, 1813, 1996, 2072, 2994, 3108, 3493, 3626, 3992, 5439, 5988, 6216, 6986, 7252, 10479, 10878, 11976, 13972, 14504, 18463, 20958, 21756, 24451, 27944, 36926, 41916, 43512, 48902, 55389, 73353, 73852, 83832, 97804, 110778, 129241, 146706, 147704, 195608, 221556, 258482, 293412, 387723, 443112, 516964, 586824, 775446, 904687, 1033928, 1550892, 1809374, 2714061, 3101784, 3618748, 5428122, 7237496, 10856244, 21712488]

約数ペア:

[(1, 21712488), (2, 10856244), (3, 7237496), (4, 5428122), (6, 3618748), (7, 3101784), (8, 2714061), (12, 1809374), (14, 1550892), (21, 1033928), (24, 904687), (28, 775446), (37, 586824), (42, 516964), (49, 443112), (56, 387723), (74, 293412), (84, 258482), (98, 221556), (111, 195608), (147, 147704), (148, 146706), (168, 129241), (196, 110778), (222, 97804), (259, 83832), (294, 73852), (296, 73353), (392, 55389), (444, 48902), (499, 43512), (518, 41916), (588, 36926), (777, 27944), (888, 24451), (998, 21756), (1036, 20958), (1176, 18463), (1497, 14504), (1554, 13972), (1813, 11976), (1996, 10878), (2072, 10479), (2994, 7252), (3108, 6986), (3493, 6216), (3626, 5988), (3992, 5439)]