28553637

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71563}}^1$

素因数の和:71592

約数の個数: 16

約数和(自身を含む): 45800960

約数和(自身を除く): 17247323

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 71563, 214689, 500941, 1359697, 1502823, 4079091, 9517879, 28553637]

約数ペア:

[(1, 28553637), (3, 9517879), (7, 4079091), (19, 1502823), (21, 1359697), (57, 500941), (133, 214689), (399, 71563)]