28978947

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{727}}^1$

素因数の和:879

約数の個数: 24

約数和(自身を含む): 43307264

約数和(自身を除く): 14328317

約数列:

[1, 3, 9, 43, 103, 129, 309, 387, 727, 927, 2181, 4429, 6543, 13287, 31261, 39861, 74881, 93783, 224643, 281349, 673929, 3219883, 9659649, 28978947]

約数ペア:

[(1, 28978947), (3, 9659649), (9, 3219883), (43, 673929), (103, 281349), (129, 224643), (309, 93783), (387, 74881), (727, 39861), (927, 31261), (2181, 13287), (4429, 6543)]