21394439

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{821}}^1$

素因数の和:958

約数の個数: 16

約数和(自身を含む): 24620544

約数和(自身を除く): 3226105

約数列:

[1, 11, 23, 103, 253, 821, 1133, 2369, 9031, 18883, 26059, 84563, 207713, 930193, 1944949, 21394439]

約数ペア:

[(1, 21394439), (11, 1944949), (23, 930193), (103, 207713), (253, 84563), (821, 26059), (1133, 18883), (2369, 9031)]