19981182

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{256169}}^1$

素因数の和:256187

約数の個数: 16

約数和(自身を含む): 43036560

約数和(自身を除く): 23055378

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 256169, 512338, 768507, 1537014, 3330197, 6660394, 9990591, 19981182]

約数ペア:

[(1, 19981182), (2, 9990591), (3, 6660394), (6, 3330197), (13, 1537014), (26, 768507), (39, 512338), (78, 256169)]