28421967

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71233}}^1$

素因数の和:71262

約数の個数: 16

約数和(自身を含む): 45589760

約数和(自身を除く): 17167793

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 71233, 213699, 498631, 1353427, 1495893, 4060281, 9473989, 28421967]

約数ペア:

[(1, 28421967), (3, 9473989), (7, 4060281), (19, 1495893), (21, 1353427), (57, 498631), (133, 213699), (399, 71233)]