1220742009

素因数分解:

$3^4\times {\mathrm{1597}}^1\times {\mathrm{9437}}^1$

素因数の和:11046

約数の個数: 20

約数和(自身を含む): 1824912804

約数和(自身を除く): 604170795

約数列:

[1, 3, 9, 27, 81, 1597, 4791, 9437, 14373, 28311, 43119, 84933, 129357, 254799, 764397, 15070889, 45212667, 135638001, 406914003, 1220742009]

約数ペア:

[(1, 1220742009), (3, 406914003), (9, 135638001), (27, 45212667), (81, 15070889), (1597, 764397), (4791, 254799), (9437, 129357), (14373, 84933), (28311, 43119)]