19774251

素因数分解:

$3^2\times 7^1\times {\mathrm{281}}^1\times {\mathrm{1117}}^1$

素因数の和:1411

約数の個数: 24

約数和(自身を含む): 32788704

約数和(自身を除く): 13014453

約数列:

[1, 3, 7, 9, 21, 63, 281, 843, 1117, 1967, 2529, 3351, 5901, 7819, 10053, 17703, 23457, 70371, 313877, 941631, 2197139, 2824893, 6591417, 19774251]

約数ペア:

[(1, 19774251), (3, 6591417), (7, 2824893), (9, 2197139), (21, 941631), (63, 313877), (281, 70371), (843, 23457), (1117, 17703), (1967, 10053), (2529, 7819), (3351, 5901)]