21053318

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73613}}^1$

素因数の和:73639

約数の個数: 16

約数和(自身を含む): 37101456

約数和(自身を除く): 16048138

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 73613, 147226, 809743, 956969, 1619486, 1913938, 10526659, 21053318]

約数ペア:

[(1, 21053318), (2, 10526659), (11, 1913938), (13, 1619486), (22, 956969), (26, 809743), (143, 147226), (286, 73613)]