18660664

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{4001}}^1$

素因数の和:4071

約数の個数: 32

約数和(自身を含む): 38899440

約数和(自身を除く): 20238776

約数列:

[1, 2, 4, 8, 11, 22, 44, 53, 88, 106, 212, 424, 583, 1166, 2332, 4001, 4664, 8002, 16004, 32008, 44011, 88022, 176044, 212053, 352088, 424106, 848212, 1696424, 2332583, 4665166, 9330332, 18660664]

約数ペア:

[(1, 18660664), (2, 9330332), (4, 4665166), (8, 2332583), (11, 1696424), (22, 848212), (44, 424106), (53, 352088), (88, 212053), (106, 176044), (212, 88022), (424, 44011), (583, 32008), (1166, 16004), (2332, 8002), (4001, 4664)]