20938445

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{53}}^1\times {\mathrm{653}}^1$

素因数の和:733

約数の個数: 24

約数和(自身を含む): 28182168

約数和(自身を除く): 7243723

約数列:

[1, 5, 11, 53, 55, 121, 265, 583, 605, 653, 2915, 3265, 6413, 7183, 32065, 34609, 35915, 79013, 173045, 380699, 395065, 1903495, 4187689, 20938445]

約数ペア:

[(1, 20938445), (5, 4187689), (11, 1903495), (53, 395065), (55, 380699), (121, 173045), (265, 79013), (583, 35915), (605, 34609), (653, 32065), (2915, 7183), (3265, 6413)]