28772685

素因数分解:

$3^3\times 5^1\times {\mathrm{213131}}^1$

素因数の和:213145

約数の個数: 16

約数和(自身を含む): 51151680

約数和(自身を除く): 22378995

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 213131, 639393, 1065655, 1918179, 3196965, 5754537, 9590895, 28772685]

約数ペア:

[(1, 28772685), (3, 9590895), (5, 5754537), (9, 3196965), (15, 1918179), (27, 1065655), (45, 639393), (135, 213131)]