220172407

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{19051}}^1$

素因数の和:19198

約数の個数: 16

約数和(自身を含む): 273129472

約数和(自身を除く): 52957065

約数列:

[1, 7, 13, 91, 127, 889, 1651, 11557, 19051, 133357, 247663, 1733641, 2419477, 16936339, 31453201, 220172407]

約数ペア:

[(1, 220172407), (7, 31453201), (13, 16936339), (91, 2419477), (127, 1733641), (889, 247663), (1651, 133357), (11557, 19051)]