20708233

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1$

素因数の和:134

約数の個数: 48

約数和(自身を含む): 28728000

約数和(自身を除く): 8019767

約数列:

[1, 7, 13, 19, 29, 49, 59, 91, 133, 203, 247, 377, 413, 551, 637, 767, 931, 1121, 1421, 1711, 1729, 2639, 2891, 3857, 5369, 7163, 7847, 11977, 12103, 14573, 18473, 22243, 26999, 32509, 37583, 50141, 54929, 83839, 102011, 155701, 227563, 350987, 422617, 714077, 1089907, 1592941, 2958319, 20708233]

約数ペア:

[(1, 20708233), (7, 2958319), (13, 1592941), (19, 1089907), (29, 714077), (49, 422617), (59, 350987), (91, 227563), (133, 155701), (203, 102011), (247, 83839), (377, 54929), (413, 50141), (551, 37583), (637, 32509), (767, 26999), (931, 22243), (1121, 18473), (1421, 14573), (1711, 12103), (1729, 11977), (2639, 7847), (2891, 7163), (3857, 5369)]