21220620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{353677}}^1$

素因数の和:353689

約数の個数: 24

約数和(自身を含む): 59417904

約数和(自身を除く): 38197284

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 353677, 707354, 1061031, 1414708, 1768385, 2122062, 3536770, 4244124, 5305155, 7073540, 10610310, 21220620]

約数ペア:

[(1, 21220620), (2, 10610310), (3, 7073540), (4, 5305155), (5, 4244124), (6, 3536770), (10, 2122062), (12, 1768385), (15, 1414708), (20, 1061031), (30, 707354), (60, 353677)]