1231191

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{619}}^1$

素因数の和:655

約数の個数: 24

約数和(自身を含む): 2031120

約数和(自身を除く): 799929

約数列:

[1, 3, 9, 13, 17, 39, 51, 117, 153, 221, 619, 663, 1857, 1989, 5571, 8047, 10523, 24141, 31569, 72423, 94707, 136799, 410397, 1231191]

約数ペア:

[(1, 1231191), (3, 410397), (9, 136799), (13, 94707), (17, 72423), (39, 31569), (51, 24141), (117, 10523), (153, 8047), (221, 5571), (619, 1989), (663, 1857)]