21815547

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{397}}^1\times {\mathrm{1409}}^1$

素因数の和:1822

約数の個数: 16

約数和(自身を含む): 31426080

約数和(自身を除く): 9610533

約数列:

[1, 3, 13, 39, 397, 1191, 1409, 4227, 5161, 15483, 18317, 54951, 559373, 1678119, 7271849, 21815547]

約数ペア:

[(1, 21815547), (3, 7271849), (13, 1678119), (39, 559373), (397, 54951), (1191, 18317), (1409, 15483), (4227, 5161)]