19909623

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{337}}^1\times {\mathrm{419}}^1$

素因数の和:806

約数の個数: 16

約数和(自身を含む): 27256320

約数和(自身を除く): 7346697

約数列:

[1, 3, 47, 141, 337, 419, 1011, 1257, 15839, 19693, 47517, 59079, 141203, 423609, 6636541, 19909623]

約数ペア:

[(1, 19909623), (3, 6636541), (47, 423609), (141, 141203), (337, 59079), (419, 47517), (1011, 19693), (1257, 15839)]