21145264

素因数分解:

$2^4\times 7^3\times {\mathrm{3853}}^1$

素因数の和:3882

約数の個数: 40

約数和(自身を含む): 47789600

約数和(自身を除く): 26644336

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 343, 392, 686, 784, 1372, 2744, 3853, 5488, 7706, 15412, 26971, 30824, 53942, 61648, 107884, 188797, 215768, 377594, 431536, 755188, 1321579, 1510376, 2643158, 3020752, 5286316, 10572632, 21145264]

約数ペア:

[(1, 21145264), (2, 10572632), (4, 5286316), (7, 3020752), (8, 2643158), (14, 1510376), (16, 1321579), (28, 755188), (49, 431536), (56, 377594), (98, 215768), (112, 188797), (196, 107884), (343, 61648), (392, 53942), (686, 30824), (784, 26971), (1372, 15412), (2744, 7706), (3853, 5488)]