21516408

素因数分解:

$2^3\times 3^3\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:170

約数の個数: 128

約数和(自身を含む): 64281600

約数和(自身を除く): 42765192

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 23, 24, 27, 36, 46, 54, 61, 69, 71, 72, 92, 108, 122, 138, 142, 183, 184, 207, 213, 216, 244, 276, 284, 366, 414, 426, 488, 549, 552, 568, 621, 639, 732, 828, 852, 1098, 1242, 1278, 1403, 1464, 1633, 1647, 1656, 1704, 1917, 2196, 2484, 2556, 2806, 3266, 3294, 3834, 4209, 4331, 4392, 4899, 4968, 5112, 5612, 6532, 6588, 7668, 8418, 8662, 9798, 11224, 12627, 12993, 13064, 13176, 14697, 15336, 16836, 17324, 19596, 25254, 25986, 29394, 33672, 34648, 37881, 38979, 39192, 44091, 50508, 51972, 58788, 75762, 77958, 88182, 99613, 101016, 103944, 116937, 117576, 151524, 155916, 176364, 199226, 233874, 298839, 303048, 311832, 352728, 398452, 467748, 597678, 796904, 896517, 935496, 1195356, 1793034, 2390712, 2689551, 3586068, 5379102, 7172136, 10758204, 21516408]

約数ペア:

[(1, 21516408), (2, 10758204), (3, 7172136), (4, 5379102), (6, 3586068), (8, 2689551), (9, 2390712), (12, 1793034), (18, 1195356), (23, 935496), (24, 896517), (27, 796904), (36, 597678), (46, 467748), (54, 398452), (61, 352728), (69, 311832), (71, 303048), (72, 298839), (92, 233874), (108, 199226), (122, 176364), (138, 155916), (142, 151524), (183, 117576), (184, 116937), (207, 103944), (213, 101016), (216, 99613), (244, 88182), (276, 77958), (284, 75762), (366, 58788), (414, 51972), (426, 50508), (488, 44091), (549, 39192), (552, 38979), (568, 37881), (621, 34648), (639, 33672), (732, 29394), (828, 25986), (852, 25254), (1098, 19596), (1242, 17324), (1278, 16836), (1403, 15336), (1464, 14697), (1633, 13176), (1647, 13064), (1656, 12993), (1704, 12627), (1917, 11224), (2196, 9798), (2484, 8662), (2556, 8418), (2806, 7668), (3266, 6588), (3294, 6532), (3834, 5612), (4209, 5112), (4331, 4968), (4392, 4899)]