21000939968

素因数分解:

$2^6\times {\mathrm{41}}^1\times {\mathrm{751}}^1\times {\mathrm{10657}}^1$

素因数の和:11461

約数の個数: 56

約数和(自身を含む): 42751028544

約数和(自身を除く): 21750088576

約数列:

[1, 2, 4, 8, 16, 32, 41, 64, 82, 164, 328, 656, 751, 1312, 1502, 2624, 3004, 6008, 10657, 12016, 21314, 24032, 30791, 42628, 48064, 61582, 85256, 123164, 170512, 246328, 341024, 436937, 492656, 682048, 873874, 985312, 1747748, 1970624, 3495496, 6990992, 8003407, 13981984, 16006814, 27963968, 32013628, 64027256, 128054512, 256109024, 328139687, 512218048, 656279374, 1312558748, 2625117496, 5250234992, 10500469984, 21000939968]

約数ペア:

[(1, 21000939968), (2, 10500469984), (4, 5250234992), (8, 2625117496), (16, 1312558748), (32, 656279374), (41, 512218048), (64, 328139687), (82, 256109024), (164, 128054512), (328, 64027256), (656, 32013628), (751, 27963968), (1312, 16006814), (1502, 13981984), (2624, 8003407), (3004, 6990992), (6008, 3495496), (10657, 1970624), (12016, 1747748), (21314, 985312), (24032, 873874), (30791, 682048), (42628, 492656), (48064, 436937), (61582, 341024), (85256, 246328), (123164, 170512)]