19651918

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{68713}}^1$

素因数の和:68739

約数の個数: 16

約数和(自身を含む): 34631856

約数和(自身を除く): 14979938

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 68713, 137426, 755843, 893269, 1511686, 1786538, 9825959, 19651918]

約数ペア:

[(1, 19651918), (2, 9825959), (11, 1786538), (13, 1511686), (22, 893269), (26, 755843), (143, 137426), (286, 68713)]