21001344

素因数分解:

$2^7\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{601}}^1$

素因数の和:638

約数の個数: 128

約数和(自身を含む): 68772480

約数和(自身を除く): 47771136

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 16, 21, 24, 26, 28, 32, 39, 42, 48, 52, 56, 64, 78, 84, 91, 96, 104, 112, 128, 156, 168, 182, 192, 208, 224, 273, 312, 336, 364, 384, 416, 448, 546, 601, 624, 672, 728, 832, 896, 1092, 1202, 1248, 1344, 1456, 1664, 1803, 2184, 2404, 2496, 2688, 2912, 3606, 4207, 4368, 4808, 4992, 5824, 7212, 7813, 8414, 8736, 9616, 11648, 12621, 14424, 15626, 16828, 17472, 19232, 23439, 25242, 28848, 31252, 33656, 34944, 38464, 46878, 50484, 54691, 57696, 62504, 67312, 76928, 93756, 100968, 109382, 115392, 125008, 134624, 164073, 187512, 201936, 218764, 230784, 250016, 269248, 328146, 375024, 403872, 437528, 500032, 538496, 656292, 750048, 807744, 875056, 1000064, 1312584, 1500096, 1615488, 1750112, 2625168, 3000192, 3500224, 5250336, 7000448, 10500672, 21001344]

約数ペア:

[(1, 21001344), (2, 10500672), (3, 7000448), (4, 5250336), (6, 3500224), (7, 3000192), (8, 2625168), (12, 1750112), (13, 1615488), (14, 1500096), (16, 1312584), (21, 1000064), (24, 875056), (26, 807744), (28, 750048), (32, 656292), (39, 538496), (42, 500032), (48, 437528), (52, 403872), (56, 375024), (64, 328146), (78, 269248), (84, 250016), (91, 230784), (96, 218764), (104, 201936), (112, 187512), (128, 164073), (156, 134624), (168, 125008), (182, 115392), (192, 109382), (208, 100968), (224, 93756), (273, 76928), (312, 67312), (336, 62504), (364, 57696), (384, 54691), (416, 50484), (448, 46878), (546, 38464), (601, 34944), (624, 33656), (672, 31252), (728, 28848), (832, 25242), (896, 23439), (1092, 19232), (1202, 17472), (1248, 16828), (1344, 15626), (1456, 14424), (1664, 12621), (1803, 11648), (2184, 9616), (2404, 8736), (2496, 8414), (2688, 7813), (2912, 7212), (3606, 5824), (4207, 4992), (4368, 4808)]