1291298517

素因数分解:

$3^4\times {\mathrm{149}}^1\times {\mathrm{106993}}^1$

素因数の和:107154

約数の個数: 20

約数和(自身を含む): 1941941100

約数和(自身を除く): 650642583

約数列:

[1, 3, 9, 27, 81, 149, 447, 1341, 4023, 12069, 106993, 320979, 962937, 2888811, 8666433, 15941957, 47825871, 143477613, 430432839, 1291298517]

約数ペア:

[(1, 1291298517), (3, 430432839), (9, 143477613), (27, 47825871), (81, 15941957), (149, 8666433), (447, 2888811), (1341, 962937), (4023, 320979), (12069, 106993)]