21491323205

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{3847}}^1\times {\mathrm{101573}}^1$

素因数の和:105436

約数の個数: 16

約数和(自身を含む): 28141686144

約数和(自身を除く): 6650362939

約数列:

[1, 5, 11, 55, 3847, 19235, 42317, 101573, 211585, 507865, 1117303, 5586515, 390751331, 1953756655, 4298264641, 21491323205]

約数ペア:

[(1, 21491323205), (5, 4298264641), (11, 1953756655), (55, 390751331), (3847, 5586515), (19235, 1117303), (42317, 507865), (101573, 211585)]