21172983

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{11551}}^1$

素因数の和:11614

約数の個数: 16

約数和(自身を含む): 31051776

約数和(自身を除く): 9878793

約数列:

[1, 3, 13, 39, 47, 141, 611, 1833, 11551, 34653, 150163, 450489, 542897, 1628691, 7057661, 21172983]

約数ペア:

[(1, 21172983), (3, 7057661), (13, 1628691), (39, 542897), (47, 450489), (141, 150163), (611, 34653), (1833, 11551)]