21181856

素因数分解:

$2^5\times {\mathrm{71}}^1\times {\mathrm{9323}}^1$

素因数の和:9404

約数の個数: 24

約数和(自身を含む): 42293664

約数和(自身を除く): 21111808

約数列:

[1, 2, 4, 8, 16, 32, 71, 142, 284, 568, 1136, 2272, 9323, 18646, 37292, 74584, 149168, 298336, 661933, 1323866, 2647732, 5295464, 10590928, 21181856]

約数ペア:

[(1, 21181856), (2, 10590928), (4, 5295464), (8, 2647732), (16, 1323866), (32, 661933), (71, 298336), (142, 149168), (284, 74584), (568, 37292), (1136, 18646), (2272, 9323)]