1207707921

素因数分解:

$3^3\times 7^1\times {\mathrm{6389989}}^1$

素因数の和:6390005

約数の個数: 16

約数和(自身を含む): 2044796800

約数和(自身を除く): 837088879

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 6389989, 19169967, 44729923, 57509901, 134189769, 172529703, 402569307, 1207707921]

約数ペア:

[(1, 1207707921), (3, 402569307), (7, 172529703), (9, 134189769), (21, 57509901), (27, 44729923), (63, 19169967), (189, 6389989)]