21504967

素因数分解:

${\mathrm{11}}^3\times {\mathrm{107}}^1\times {\mathrm{151}}^1$

素因数の和:291

約数の個数: 16

約数和(自身を含む): 24033024

約数和(自身を除く): 2528057

約数列:

[1, 11, 107, 121, 151, 1177, 1331, 1661, 12947, 16157, 18271, 142417, 177727, 200981, 1954997, 21504967]

約数ペア:

[(1, 21504967), (11, 1954997), (107, 200981), (121, 177727), (151, 142417), (1177, 18271), (1331, 16157), (1661, 12947)]