21667401

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{20231}}^1$

素因数の和:20261

約数の個数: 24

約数和(自身を含む): 37874304

約数和(自身を除く): 16206903

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 20231, 60693, 141617, 182079, 343927, 424851, 1031781, 1274553, 2407489, 3095343, 7222467, 21667401]

約数ペア:

[(1, 21667401), (3, 7222467), (7, 3095343), (9, 2407489), (17, 1274553), (21, 1031781), (51, 424851), (63, 343927), (119, 182079), (153, 141617), (357, 60693), (1071, 20231)]