18458518

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{97}}^1\times {\mathrm{563}}^1$

素因数の和:688

約数の個数: 24

約数和(自身を含む): 30344328

約数和(自身を除く): 11885810

約数列:

[1, 2, 13, 26, 97, 169, 194, 338, 563, 1126, 1261, 2522, 7319, 14638, 16393, 32786, 54611, 95147, 109222, 190294, 709943, 1419886, 9229259, 18458518]

約数ペア:

[(1, 18458518), (2, 9229259), (13, 1419886), (26, 709943), (97, 190294), (169, 109222), (194, 95147), (338, 54611), (563, 32786), (1126, 16393), (1261, 14638), (2522, 7319)]