21214035

素因数分解:

$3^3\times 5^1\times {\mathrm{157141}}^1$

素因数の和:157155

約数の個数: 16

約数和(自身を含む): 37714080

約数和(自身を除く): 16500045

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 157141, 471423, 785705, 1414269, 2357115, 4242807, 7071345, 21214035]

約数ペア:

[(1, 21214035), (3, 7071345), (5, 4242807), (9, 2357115), (15, 1414269), (27, 785705), (45, 471423), (135, 157141)]