18556876

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{97}}^1\times {\mathrm{283}}^1$

素因数の和:410

約数の個数: 36

約数和(自身を含む): 35652792

約数和(自身を除く): 17095916

約数列:

[1, 2, 4, 13, 26, 52, 97, 169, 194, 283, 338, 388, 566, 676, 1132, 1261, 2522, 3679, 5044, 7358, 14716, 16393, 27451, 32786, 47827, 54902, 65572, 95654, 109804, 191308, 356863, 713726, 1427452, 4639219, 9278438, 18556876]

約数ペア:

[(1, 18556876), (2, 9278438), (4, 4639219), (13, 1427452), (26, 713726), (52, 356863), (97, 191308), (169, 109804), (194, 95654), (283, 65572), (338, 54902), (388, 47827), (566, 32786), (676, 27451), (1132, 16393), (1261, 14716), (2522, 7358), (3679, 5044)]