21646428

素因数分解:

$2^2\times 3^1\times {\mathrm{661}}^1\times {\mathrm{2729}}^1$

素因数の和:3397

約数の個数: 24

約数和(自身を含む): 50603280

約数和(自身を除く): 28956852

約数列:

[1, 2, 3, 4, 6, 12, 661, 1322, 1983, 2644, 2729, 3966, 5458, 7932, 8187, 10916, 16374, 32748, 1803869, 3607738, 5411607, 7215476, 10823214, 21646428]

約数ペア:

[(1, 21646428), (2, 10823214), (3, 7215476), (4, 5411607), (6, 3607738), (12, 1803869), (661, 32748), (1322, 16374), (1983, 10916), (2644, 8187), (2729, 7932), (3966, 5458)]