20489955

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{33317}}^1$

素因数の和:33366

約数の個数: 16

約数和(自身を含む): 33584544

約数和(自身を除く): 13094589

約数列:

[1, 3, 5, 15, 41, 123, 205, 615, 33317, 99951, 166585, 499755, 1365997, 4097991, 6829985, 20489955]

約数ペア:

[(1, 20489955), (3, 6829985), (5, 4097991), (15, 1365997), (41, 499755), (123, 166585), (205, 99951), (615, 33317)]