28790505

素因数分解:

$3^3\times 5^1\times {\mathrm{213263}}^1$

素因数の和:213277

約数の個数: 16

約数和(自身を含む): 51183360

約数和(自身を除く): 22392855

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 213263, 639789, 1066315, 1919367, 3198945, 5758101, 9596835, 28790505]

約数ペア:

[(1, 28790505), (3, 9596835), (5, 5758101), (9, 3198945), (15, 1919367), (27, 1066315), (45, 639789), (135, 213263)]