21141395

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{20231}}^1$

素因数の和:20266

約数の個数: 16

約数和(自身を含む): 29134080

約数和(自身を除く): 7992685

約数列:

[1, 5, 11, 19, 55, 95, 209, 1045, 20231, 101155, 222541, 384389, 1112705, 1921945, 4228279, 21141395]

約数ペア:

[(1, 21141395), (5, 4228279), (11, 1921945), (19, 1112705), (55, 384389), (95, 222541), (209, 101155), (1045, 20231)]