21335520565

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{73}}^1\times {\mathrm{161921}}^1$

素因数の和:162037

約数の個数: 24

約数和(自身を含む): 27391373208

約数和(自身を除く): 6055852643

約数列:

[1, 5, 19, 73, 95, 361, 365, 1387, 1805, 6935, 26353, 131765, 161921, 809605, 3076499, 11820233, 15382495, 58453481, 59101165, 224584427, 292267405, 1122922135, 4267104113, 21335520565]

約数ペア:

[(1, 21335520565), (5, 4267104113), (19, 1122922135), (73, 292267405), (95, 224584427), (361, 59101165), (365, 58453481), (1387, 15382495), (1805, 11820233), (6935, 3076499), (26353, 809605), (131765, 161921)]