28459473

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71327}}^1$

素因数の和:71356

約数の個数: 16

約数和(自身を含む): 45649920

約数和(自身を除く): 17190447

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 71327, 213981, 499289, 1355213, 1497867, 4065639, 9486491, 28459473]

約数ペア:

[(1, 28459473), (3, 9486491), (7, 4065639), (19, 1497867), (21, 1355213), (57, 499289), (133, 213981), (399, 71327)]