28657149

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{21859}}^1$

素因数の和:21904

約数の個数: 16

約数和(自身を含む): 41971200

約数和(自身を除く): 13314051

約数列:

[1, 3, 19, 23, 57, 69, 437, 1311, 21859, 65577, 415321, 502757, 1245963, 1508271, 9552383, 28657149]

約数ペア:

[(1, 28657149), (3, 9552383), (19, 1508271), (23, 1245963), (57, 502757), (69, 415321), (437, 65577), (1311, 21859)]