19872688

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{112913}}^1$

素因数の和:112932

約数の個数: 20

約数和(自身を含む): 42004008

約数和(自身を除く): 22131320

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 112913, 225826, 451652, 903304, 1242043, 1806608, 2484086, 4968172, 9936344, 19872688]

約数ペア:

[(1, 19872688), (2, 9936344), (4, 4968172), (8, 2484086), (11, 1806608), (16, 1242043), (22, 903304), (44, 451652), (88, 225826), (176, 112913)]