215445981

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{211}}^1\times {\mathrm{20021}}^1$

素因数の和:20252

約数の個数: 16

約数和(自身を含む): 305615808

約数和(自身を除く): 90169827

約数列:

[1, 3, 17, 51, 211, 633, 3587, 10761, 20021, 60063, 340357, 1021071, 4224431, 12673293, 71815327, 215445981]

約数ペア:

[(1, 215445981), (3, 71815327), (17, 12673293), (51, 4224431), (211, 1021071), (633, 340357), (3587, 60063), (10761, 20021)]