21008292

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{739}}^1$

素因数の和:872

約数の個数: 48

約数和(自身を含む): 51717120

約数和(自身を除く): 30708828

約数列:

[1, 2, 3, 4, 6, 12, 23, 46, 69, 92, 103, 138, 206, 276, 309, 412, 618, 739, 1236, 1478, 2217, 2369, 2956, 4434, 4738, 7107, 8868, 9476, 14214, 16997, 28428, 33994, 50991, 67988, 76117, 101982, 152234, 203964, 228351, 304468, 456702, 913404, 1750691, 3501382, 5252073, 7002764, 10504146, 21008292]

約数ペア:

[(1, 21008292), (2, 10504146), (3, 7002764), (4, 5252073), (6, 3501382), (12, 1750691), (23, 913404), (46, 456702), (69, 304468), (92, 228351), (103, 203964), (138, 152234), (206, 101982), (276, 76117), (309, 67988), (412, 50991), (618, 33994), (739, 28428), (1236, 16997), (1478, 14214), (2217, 9476), (2369, 8868), (2956, 7107), (4434, 4738)]