21267045

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{241}}^1$

素因数の和:342

約数の個数: 48

約数和(自身を含む): 38733552

約数和(自身を除く): 17466507

約数列:

[1, 3, 5, 9, 15, 37, 45, 53, 111, 159, 185, 241, 265, 333, 477, 555, 723, 795, 1205, 1665, 1961, 2169, 2385, 3615, 5883, 8917, 9805, 10845, 12773, 17649, 26751, 29415, 38319, 44585, 63865, 80253, 88245, 114957, 133755, 191595, 401265, 472601, 574785, 1417803, 2363005, 4253409, 7089015, 21267045]

約数ペア:

[(1, 21267045), (3, 7089015), (5, 4253409), (9, 2363005), (15, 1417803), (37, 574785), (45, 472601), (53, 401265), (111, 191595), (159, 133755), (185, 114957), (241, 88245), (265, 80253), (333, 63865), (477, 44585), (555, 38319), (723, 29415), (795, 26751), (1205, 17649), (1665, 12773), (1961, 10845), (2169, 9805), (2385, 8917), (3615, 5883)]