21308077441

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{113}}^1\times {\mathrm{4663}}^1$

素因数の和:4945

約数の個数: 32

約数和(自身を含む): 25266193920

約数和(自身を除く): 3958116479

約数列:

[1, 7, 53, 109, 113, 371, 763, 791, 4663, 5777, 5989, 12317, 32641, 40439, 41923, 86219, 247139, 508267, 526919, 652801, 1729973, 3557869, 3688433, 4569607, 26938151, 27926707, 57434171, 188567057, 195486949, 402039197, 3044011063, 21308077441]

約数ペア:

[(1, 21308077441), (7, 3044011063), (53, 402039197), (109, 195486949), (113, 188567057), (371, 57434171), (763, 27926707), (791, 26938151), (4663, 4569607), (5777, 3688433), (5989, 3557869), (12317, 1729973), (32641, 652801), (40439, 526919), (41923, 508267), (86219, 247139)]