21249240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{7699}}^1$

素因数の和:7736

約数の個数: 64

約数和(自身を含む): 66528000

約数和(自身を除く): 45278760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 184, 230, 276, 345, 460, 552, 690, 920, 1380, 2760, 7699, 15398, 23097, 30796, 38495, 46194, 61592, 76990, 92388, 115485, 153980, 177077, 184776, 230970, 307960, 354154, 461940, 531231, 708308, 885385, 923880, 1062462, 1416616, 1770770, 2124924, 2656155, 3541540, 4249848, 5312310, 7083080, 10624620, 21249240]

約数ペア:

[(1, 21249240), (2, 10624620), (3, 7083080), (4, 5312310), (5, 4249848), (6, 3541540), (8, 2656155), (10, 2124924), (12, 1770770), (15, 1416616), (20, 1062462), (23, 923880), (24, 885385), (30, 708308), (40, 531231), (46, 461940), (60, 354154), (69, 307960), (92, 230970), (115, 184776), (120, 177077), (138, 153980), (184, 115485), (230, 92388), (276, 76990), (345, 61592), (460, 46194), (552, 38495), (690, 30796), (920, 23097), (1380, 15398), (2760, 7699)]