21044045

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{317}}^1$

素因数の和:421

約数の個数: 32

約数和(自身を含む): 29673216

約数和(自身を除く): 8629171

約数列:

[1, 5, 11, 17, 55, 71, 85, 187, 317, 355, 781, 935, 1207, 1585, 3487, 3905, 5389, 6035, 13277, 17435, 22507, 26945, 59279, 66385, 112535, 247577, 296395, 382619, 1237885, 1913095, 4208809, 21044045]

約数ペア:

[(1, 21044045), (5, 4208809), (11, 1913095), (17, 1237885), (55, 382619), (71, 296395), (85, 247577), (187, 112535), (317, 66385), (355, 59279), (781, 26945), (935, 22507), (1207, 17435), (1585, 13277), (3487, 6035), (3905, 5389)]