28909971

素因数分解:

$3^2\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{557}}^1$

素因数の和:715

約数の個数: 24

約数和(自身を含む): 42943680

約数和(自身を除く): 14033709

約数列:

[1, 3, 9, 73, 79, 219, 237, 557, 657, 711, 1671, 5013, 5767, 17301, 40661, 44003, 51903, 121983, 132009, 365949, 396027, 3212219, 9636657, 28909971]

約数ペア:

[(1, 28909971), (3, 9636657), (9, 3212219), (73, 396027), (79, 365949), (219, 132009), (237, 121983), (557, 51903), (657, 44003), (711, 40661), (1671, 17301), (5013, 5767)]