19782051

素因数分解:

$3^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1\times {\mathrm{1531}}^1$

素因数の和:1666

約数の個数: 16

約数和(自身を含む): 27208320

約数和(自身を除く): 7426269

約数列:

[1, 3, 59, 73, 177, 219, 1531, 4307, 4593, 12921, 90329, 111763, 270987, 335289, 6594017, 19782051]

約数ペア:

[(1, 19782051), (3, 6594017), (59, 335289), (73, 270987), (177, 111763), (219, 90329), (1531, 12921), (4307, 4593)]