28012593

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{70207}}^1$

素因数の和:70236

約数の個数: 16

約数和(自身を含む): 44933120

約数和(自身を除く): 16920527

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 70207, 210621, 491449, 1333933, 1474347, 4001799, 9337531, 28012593]

約数ペア:

[(1, 28012593), (3, 9337531), (7, 4001799), (19, 1474347), (21, 1333933), (57, 491449), (133, 210621), (399, 70207)]