21152264

素因数分解:

$2^3\times 7^1\times {\mathrm{389}}^1\times {\mathrm{971}}^1$

素因数の和:1373

約数の個数: 32

約数和(自身を含む): 45489600

約数和(自身を除く): 24337336

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 389, 778, 971, 1556, 1942, 2723, 3112, 3884, 5446, 6797, 7768, 10892, 13594, 21784, 27188, 54376, 377719, 755438, 1510876, 2644033, 3021752, 5288066, 10576132, 21152264]

約数ペア:

[(1, 21152264), (2, 10576132), (4, 5288066), (7, 3021752), (8, 2644033), (14, 1510876), (28, 755438), (56, 377719), (389, 54376), (778, 27188), (971, 21784), (1556, 13594), (1942, 10892), (2723, 7768), (3112, 6797), (3884, 5446)]