20974558

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{7507}}^1$

素因数の和:7647

約数の個数: 16

約数和(自身を含む): 34596864

約数和(自身を除く): 13622306

約数列:

[1, 2, 11, 22, 127, 254, 1397, 2794, 7507, 15014, 82577, 165154, 953389, 1906778, 10487279, 20974558]

約数ペア:

[(1, 20974558), (2, 10487279), (11, 1906778), (22, 953389), (127, 165154), (254, 82577), (1397, 15014), (2794, 7507)]