161947521

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{253439}}^1$

素因数の和:253516

約数の個数: 12

約数和(自身を含む): 237219840

約数和(自身を除く): 75272319

約数列:

[1, 3, 9, 71, 213, 639, 253439, 760317, 2280951, 17994169, 53982507, 161947521]

約数ペア:

[(1, 161947521), (3, 53982507), (9, 17994169), (71, 2280951), (213, 760317), (639, 253439)]