18758938

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{283}}^1$

素因数の和:450

約数の個数: 32

約数和(自身を含む): 32389632

約数和(自身を除く): 13630694

約数列:

[1, 2, 11, 22, 23, 46, 131, 253, 262, 283, 506, 566, 1441, 2882, 3013, 3113, 6026, 6226, 6509, 13018, 33143, 37073, 66286, 71599, 74146, 143198, 407803, 815606, 852679, 1705358, 9379469, 18758938]

約数ペア:

[(1, 18758938), (2, 9379469), (11, 1705358), (22, 852679), (23, 815606), (46, 407803), (131, 143198), (253, 74146), (262, 71599), (283, 66286), (506, 37073), (566, 33143), (1441, 13018), (2882, 6509), (3013, 6226), (3113, 6026)]