19998776

素因数分解:

$2^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{15527}}^1$

素因数の和:15563

約数の個数: 32

約数和(自身を含む): 44720640

約数和(自身を除く): 24721864

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 56, 92, 161, 184, 322, 644, 1288, 15527, 31054, 62108, 108689, 124216, 217378, 357121, 434756, 714242, 869512, 1428484, 2499847, 2856968, 4999694, 9999388, 19998776]

約数ペア:

[(1, 19998776), (2, 9999388), (4, 4999694), (7, 2856968), (8, 2499847), (14, 1428484), (23, 869512), (28, 714242), (46, 434756), (56, 357121), (92, 217378), (161, 124216), (184, 108689), (322, 62108), (644, 31054), (1288, 15527)]