12147821

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{613}}^1$

素因数の和:788

約数の個数: 16

約数和(自身を含む): 14736000

約数和(自身を除く): 2588179

約数列:

[1, 7, 19, 133, 149, 613, 1043, 2831, 4291, 11647, 19817, 81529, 91337, 639359, 1735403, 12147821]

約数ペア:

[(1, 12147821), (7, 1735403), (19, 639359), (133, 91337), (149, 81529), (613, 19817), (1043, 11647), (2831, 4291)]