161890011

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{253349}}^1$

素因数の和:253426

約数の個数: 12

約数和(自身を含む): 237135600

約数和(自身を除く): 75245589

約数列:

[1, 3, 9, 71, 213, 639, 253349, 760047, 2280141, 17987779, 53963337, 161890011]

約数ペア:

[(1, 161890011), (3, 53963337), (9, 17987779), (71, 2280141), (213, 760047), (639, 253349)]