21170002

素因数分解:

$2^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1\times {\mathrm{277}}^1$

素因数の和:442

約数の個数: 32

約数和(自身を含む): 37469952

約数和(自身を除く): 16299950

約数列:

[1, 2, 7, 14, 53, 103, 106, 206, 277, 371, 554, 721, 742, 1442, 1939, 3878, 5459, 10918, 14681, 28531, 29362, 38213, 57062, 76426, 102767, 199717, 205534, 399434, 1512143, 3024286, 10585001, 21170002]

約数ペア:

[(1, 21170002), (2, 10585001), (7, 3024286), (14, 1512143), (53, 399434), (103, 205534), (106, 199717), (206, 102767), (277, 76426), (371, 57062), (554, 38213), (721, 29362), (742, 28531), (1442, 14681), (1939, 10918), (3878, 5459)]