28077903

素因数分解:

$3^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{4327}}^1$

素因数の和:4443

約数の個数: 24

約数和(自身を含む): 46811648

約数和(自身を除く): 18733745

約数列:

[1, 3, 7, 9, 21, 63, 103, 309, 721, 927, 2163, 4327, 6489, 12981, 30289, 38943, 90867, 272601, 445681, 1337043, 3119767, 4011129, 9359301, 28077903]

約数ペア:

[(1, 28077903), (3, 9359301), (7, 4011129), (9, 3119767), (21, 1337043), (63, 445681), (103, 272601), (309, 90867), (721, 38943), (927, 30289), (2163, 12981), (4327, 6489)]