21068139

素因数分解:

$3^1\times {\mathrm{83}}^1\times {\mathrm{211}}^1\times {\mathrm{401}}^1$

素因数の和:698

約数の個数: 16

約数和(自身を含む): 28635264

約数和(自身を除く): 7567125

約数列:

[1, 3, 83, 211, 249, 401, 633, 1203, 17513, 33283, 52539, 84611, 99849, 253833, 7022713, 21068139]

約数ペア:

[(1, 21068139), (3, 7022713), (83, 253833), (211, 99849), (249, 84611), (401, 52539), (633, 33283), (1203, 17513)]