21977404

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{1249}}^1$

素因数の和:1389

約数の個数: 24

約数和(自身を含む): 39690000

約数和(自身を除く): 17712596

約数列:

[1, 2, 4, 53, 83, 106, 166, 212, 332, 1249, 2498, 4399, 4996, 8798, 17596, 66197, 103667, 132394, 207334, 264788, 414668, 5494351, 10988702, 21977404]

約数ペア:

[(1, 21977404), (2, 10988702), (4, 5494351), (53, 414668), (83, 264788), (106, 207334), (166, 132394), (212, 103667), (332, 66197), (1249, 17596), (2498, 8798), (4399, 4996)]