19904385

素因数分解:

$3^1\times 5^1\times {\mathrm{113}}^1\times {\mathrm{11743}}^1$

素因数の和:11864

約数の個数: 16

約数和(自身を含む): 32131584

約数和(自身を除く): 12227199

約数列:

[1, 3, 5, 15, 113, 339, 565, 1695, 11743, 35229, 58715, 176145, 1326959, 3980877, 6634795, 19904385]

約数ペア:

[(1, 19904385), (3, 6634795), (5, 3980877), (15, 1326959), (113, 176145), (339, 58715), (565, 35229), (1695, 11743)]