9951921

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{3361}}^1$

素因数の和:3421

約数の個数: 24

約数和(自身を含む): 16783104

約数和(自身を除く): 6831183

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 2961, 3361, 10083, 23527, 30249, 70581, 157967, 211743, 473901, 1105769, 1421703, 3317307, 9951921]

約数ペア:

[(1, 9951921), (3, 3317307), (7, 1421703), (9, 1105769), (21, 473901), (47, 211743), (63, 157967), (141, 70581), (329, 30249), (423, 23527), (987, 10083), (2961, 3361)]