28219959

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{227}}^1\times {\mathrm{727}}^1$

素因数の和:979

約数の個数: 24

約数和(自身を含む): 43155840

約数和(自身を除く): 14935881

約数列:

[1, 3, 9, 19, 57, 171, 227, 681, 727, 2043, 2181, 4313, 6543, 12939, 13813, 38817, 41439, 124317, 165029, 495087, 1485261, 3135551, 9406653, 28219959]

約数ペア:

[(1, 28219959), (3, 9406653), (9, 3135551), (19, 1485261), (57, 495087), (171, 165029), (227, 124317), (681, 41439), (727, 38817), (2043, 13813), (2181, 12939), (4313, 6543)]