21180249936

素因数分解:

$2^4\times 3^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{148721}}^1$

素因数の和:148801

約数の個数: 120

約数和(自身を含む): 63291324096

約数和(自身を除く): 42111074160

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 36, 43, 46, 48, 69, 72, 86, 92, 129, 138, 144, 172, 184, 207, 258, 276, 344, 368, 387, 414, 516, 552, 688, 774, 828, 989, 1032, 1104, 1548, 1656, 1978, 2064, 2967, 3096, 3312, 3956, 5934, 6192, 7912, 8901, 11868, 15824, 17802, 23736, 35604, 47472, 71208, 142416, 148721, 297442, 446163, 594884, 892326, 1189768, 1338489, 1784652, 2379536, 2676978, 3420583, 3569304, 5353956, 6395003, 6841166, 7138608, 10261749, 10707912, 12790006, 13682332, 19185009, 20523498, 21415824, 25580012, 27364664, 30785247, 38370018, 41046996, 51160024, 54729328, 57555027, 61570494, 76740036, 82093992, 102320048, 115110054, 123140988, 147085069, 153480072, 164187984, 230220108, 246281976, 294170138, 306960144, 441255207, 460440216, 492563952, 588340276, 882510414, 920880432, 1176680552, 1323765621, 1765020828, 2353361104, 2647531242, 3530041656, 5295062484, 7060083312, 10590124968, 21180249936]

約数ペア:

[(1, 21180249936), (2, 10590124968), (3, 7060083312), (4, 5295062484), (6, 3530041656), (8, 2647531242), (9, 2353361104), (12, 1765020828), (16, 1323765621), (18, 1176680552), (23, 920880432), (24, 882510414), (36, 588340276), (43, 492563952), (46, 460440216), (48, 441255207), (69, 306960144), (72, 294170138), (86, 246281976), (92, 230220108), (129, 164187984), (138, 153480072), (144, 147085069), (172, 123140988), (184, 115110054), (207, 102320048), (258, 82093992), (276, 76740036), (344, 61570494), (368, 57555027), (387, 54729328), (414, 51160024), (516, 41046996), (552, 38370018), (688, 30785247), (774, 27364664), (828, 25580012), (989, 21415824), (1032, 20523498), (1104, 19185009), (1548, 13682332), (1656, 12790006), (1978, 10707912), (2064, 10261749), (2967, 7138608), (3096, 6841166), (3312, 6395003), (3956, 5353956), (5934, 3569304), (6192, 3420583), (7912, 2676978), (8901, 2379536), (11868, 1784652), (15824, 1338489), (17802, 1189768), (23736, 892326), (35604, 594884), (47472, 446163), (71208, 297442), (142416, 148721)]