21000409008

素因数分解:

$2^4\times 3^1\times {\mathrm{83}}^1\times {\mathrm{613}}^1\times {\mathrm{8599}}^1$

素因数の和:9306

約数の個数: 80

約数和(自身を含む): 55000646400

約数和(自身を除く): 34000237392

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 83, 166, 249, 332, 498, 613, 664, 996, 1226, 1328, 1839, 1992, 2452, 3678, 3984, 4904, 7356, 8599, 9808, 14712, 17198, 25797, 29424, 34396, 50879, 51594, 68792, 101758, 103188, 137584, 152637, 203516, 206376, 305274, 407032, 412752, 610548, 713717, 814064, 1221096, 1427434, 2141151, 2442192, 2854868, 4282302, 5271187, 5709736, 8564604, 10542374, 11419472, 15813561, 17129208, 21084748, 31627122, 34258416, 42169496, 63254244, 84338992, 126508488, 253016976, 437508521, 875017042, 1312525563, 1750034084, 2625051126, 3500068168, 5250102252, 7000136336, 10500204504, 21000409008]

約数ペア:

[(1, 21000409008), (2, 10500204504), (3, 7000136336), (4, 5250102252), (6, 3500068168), (8, 2625051126), (12, 1750034084), (16, 1312525563), (24, 875017042), (48, 437508521), (83, 253016976), (166, 126508488), (249, 84338992), (332, 63254244), (498, 42169496), (613, 34258416), (664, 31627122), (996, 21084748), (1226, 17129208), (1328, 15813561), (1839, 11419472), (1992, 10542374), (2452, 8564604), (3678, 5709736), (3984, 5271187), (4904, 4282302), (7356, 2854868), (8599, 2442192), (9808, 2141151), (14712, 1427434), (17198, 1221096), (25797, 814064), (29424, 713717), (34396, 610548), (50879, 412752), (51594, 407032), (68792, 305274), (101758, 206376), (103188, 203516), (137584, 152637)]