71978139

素因数分解:

$3^4\times {\mathrm{127}}^1\times {\mathrm{6997}}^1$

素因数の和:7136

約数の個数: 20

約数和(自身を含む): 108385024

約数和(自身を除く): 36406885

約数列:

[1, 3, 9, 27, 81, 127, 381, 1143, 3429, 6997, 10287, 20991, 62973, 188919, 566757, 888619, 2665857, 7997571, 23992713, 71978139]

約数ペア:

[(1, 71978139), (3, 23992713), (9, 7997571), (27, 2665857), (81, 888619), (127, 566757), (381, 188919), (1143, 62973), (3429, 20991), (6997, 10287)]