31488681

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{78919}}^1$

素因数の和:78948

約数の個数: 16

約数和(自身を含む): 50508800

約数和(自身を除く): 19020119

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 78919, 236757, 552433, 1499461, 1657299, 4498383, 10496227, 31488681]

約数ペア:

[(1, 31488681), (3, 10496227), (7, 4498383), (19, 1657299), (21, 1499461), (57, 552433), (133, 236757), (399, 78919)]