20851919417

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1\times {\mathrm{24379}}^1$

素因数の和:24573

約数の個数: 32

約数和(自身を含む): 25745280000

約数和(自身を除く): 4893360583

約数列:

[1, 7, 19, 59, 109, 133, 413, 763, 1121, 2071, 6431, 7847, 14497, 24379, 45017, 122189, 170653, 463201, 855323, 1438361, 2657311, 3242407, 10068527, 18601177, 27328859, 50488909, 156781349, 191302013, 353422363, 1097469443, 2978845631, 20851919417]

約数ペア:

[(1, 20851919417), (7, 2978845631), (19, 1097469443), (59, 353422363), (109, 191302013), (133, 156781349), (413, 50488909), (763, 27328859), (1121, 18601177), (2071, 10068527), (6431, 3242407), (7847, 2657311), (14497, 1438361), (24379, 855323), (45017, 463201), (122189, 170653)]