19622721

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{257}}^1\times {\mathrm{821}}^1$

素因数の和:1112

約数の個数: 16

約数和(自身を含む): 27145728

約数和(自身を除く): 7523007

約数列:

[1, 3, 31, 93, 257, 771, 821, 2463, 7967, 23901, 25451, 76353, 210997, 632991, 6540907, 19622721]

約数ペア:

[(1, 19622721), (3, 6540907), (31, 632991), (93, 210997), (257, 76353), (771, 25451), (821, 23901), (2463, 7967)]