1811991

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1$

素因数の和:302

約数の個数: 16

約数和(自身を含む): 2515968

約数和(自身を除く): 703977

約数列:

[1, 3, 47, 71, 141, 181, 213, 543, 3337, 8507, 10011, 12851, 25521, 38553, 603997, 1811991]

約数ペア:

[(1, 1811991), (3, 603997), (47, 38553), (71, 25521), (141, 12851), (181, 10011), (213, 8507), (543, 3337)]