21541725

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{5039}}^1$

素因数の和:5074

約数の個数: 36

約数和(自身を含む): 40622400

約数和(自身を除く): 19080675

約数列:

[1, 3, 5, 9, 15, 19, 25, 45, 57, 75, 95, 171, 225, 285, 475, 855, 1425, 4275, 5039, 15117, 25195, 45351, 75585, 95741, 125975, 226755, 287223, 377925, 478705, 861669, 1133775, 1436115, 2393525, 4308345, 7180575, 21541725]

約数ペア:

[(1, 21541725), (3, 7180575), (5, 4308345), (9, 2393525), (15, 1436115), (19, 1133775), (25, 861669), (45, 478705), (57, 377925), (75, 287223), (95, 226755), (171, 125975), (225, 95741), (285, 75585), (475, 45351), (855, 25195), (1425, 15117), (4275, 5039)]