21952185

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{2777}}^1$

素因数の和:2833

約数の個数: 32

約数和(自身を含む): 38403072

約数和(自身を除く): 16450887

約数列:

[1, 3, 5, 15, 17, 31, 51, 85, 93, 155, 255, 465, 527, 1581, 2635, 2777, 7905, 8331, 13885, 41655, 47209, 86087, 141627, 236045, 258261, 430435, 708135, 1291305, 1463479, 4390437, 7317395, 21952185]

約数ペア:

[(1, 21952185), (3, 7317395), (5, 4390437), (15, 1463479), (17, 1291305), (31, 708135), (51, 430435), (85, 258261), (93, 236045), (155, 141627), (255, 86087), (465, 47209), (527, 41655), (1581, 13885), (2635, 8331), (2777, 7905)]