31915137

素因数分解:

$3^1\times {\mathrm{17}}^2\times {\mathrm{131}}^1\times {\mathrm{281}}^1$

素因数の和:449

約数の個数: 24

約数和(自身を含む): 45711072

約数和(自身を除く): 13795935

約数列:

[1, 3, 17, 51, 131, 281, 289, 393, 843, 867, 2227, 4777, 6681, 14331, 36811, 37859, 81209, 110433, 113577, 243627, 625787, 1877361, 10638379, 31915137]

約数ペア:

[(1, 31915137), (3, 10638379), (17, 1877361), (51, 625787), (131, 243627), (281, 113577), (289, 110433), (393, 81209), (843, 37859), (867, 36811), (2227, 14331), (4777, 6681)]