21051291245

素因数分解:

$5^1\times {\mathrm{83}}^1\times {\mathrm{4289}}^1\times {\mathrm{11827}}^1$

素因数の和:16204

約数の個数: 16

約数和(自身を含む): 25574028480

約数和(自身を除く): 4522737235

約数列:

[1, 5, 83, 415, 4289, 11827, 21445, 59135, 355987, 981641, 1779935, 4908205, 50726003, 253630015, 4210258249, 21051291245]

約数ペア:

[(1, 21051291245), (5, 4210258249), (83, 253630015), (415, 50726003), (4289, 4908205), (11827, 1779935), (21445, 981641), (59135, 355987)]