21764192

素因数分解:

$2^5\times {\mathrm{43}}^1\times {\mathrm{15817}}^1$

素因数の和:15870

約数の個数: 24

約数和(自身を含む): 43847496

約数和(自身を除く): 22083304

約数列:

[1, 2, 4, 8, 16, 32, 43, 86, 172, 344, 688, 1376, 15817, 31634, 63268, 126536, 253072, 506144, 680131, 1360262, 2720524, 5441048, 10882096, 21764192]

約数ペア:

[(1, 21764192), (2, 10882096), (4, 5441048), (8, 2720524), (16, 1360262), (32, 680131), (43, 506144), (86, 253072), (172, 126536), (344, 63268), (688, 31634), (1376, 15817)]