208893009

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{144763}}^1$

素因数の和:144816

約数の個数: 16

約数和(自身を含む): 308057792

約数和(自身を除く): 99164783

約数列:

[1, 3, 13, 37, 39, 111, 481, 1443, 144763, 434289, 1881919, 5356231, 5645757, 16068693, 69631003, 208893009]

約数ペア:

[(1, 208893009), (3, 69631003), (13, 16068693), (37, 5645757), (39, 5356231), (111, 1881919), (481, 434289), (1443, 144763)]