18761421

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{52553}}^1$

素因数の和:52580

約数の個数: 16

約数和(自身を含む): 30271104

約数和(自身を除く): 11509683

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 52553, 157659, 367871, 893401, 1103613, 2680203, 6253807, 18761421]

約数ペア:

[(1, 18761421), (3, 6253807), (7, 2680203), (17, 1103613), (21, 893401), (51, 367871), (119, 157659), (357, 52553)]