20219928911

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{409}}^1\times {\mathrm{31957}}^1$

素因数の和:32403

約数の個数: 32

約数和(自身を含む): 26415204480

約数和(自身を除く): 6195275569

約数列:

[1, 7, 13, 17, 91, 119, 221, 409, 1547, 2863, 5317, 6953, 31957, 37219, 48671, 90389, 223699, 415441, 543269, 632723, 2908087, 3802883, 7062497, 13070413, 49437479, 91492891, 169915369, 222197021, 1189407583, 1555379147, 2888561273, 20219928911]

約数ペア:

[(1, 20219928911), (7, 2888561273), (13, 1555379147), (17, 1189407583), (91, 222197021), (119, 169915369), (221, 91492891), (409, 49437479), (1547, 13070413), (2863, 7062497), (5317, 3802883), (6953, 2908087), (31957, 632723), (37219, 543269), (48671, 415441), (90389, 223699)]