19881045

素因数分解:

$3^5\times 5^1\times {\mathrm{16363}}^1$

素因数の和:16383

約数の個数: 24

約数和(自身を含む): 35738976

約数和(自身を除く): 15857931

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 16363, 49089, 81815, 147267, 245445, 441801, 736335, 1325403, 2209005, 3976209, 6627015, 19881045]

約数ペア:

[(1, 19881045), (3, 6627015), (5, 3976209), (9, 2209005), (15, 1325403), (27, 736335), (45, 441801), (81, 245445), (135, 147267), (243, 81815), (405, 49089), (1215, 16363)]