21902953

素因数分解:

${\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{83}}^1$

素因数の和:181

約数の個数: 24

約数和(自身を含む): 25347168

約数和(自身を除く): 3444215

約数列:

[1, 17, 19, 43, 83, 323, 361, 731, 817, 1411, 1577, 3569, 6137, 13889, 15523, 26809, 29963, 60673, 67811, 263891, 509371, 1152787, 1288409, 21902953]

約数ペア:

[(1, 21902953), (17, 1288409), (19, 1152787), (43, 509371), (83, 263891), (323, 67811), (361, 60673), (731, 29963), (817, 26809), (1411, 15523), (1577, 13889), (3569, 6137)]