21381036345

素因数分解:

$3^3\times 5^1\times {\mathrm{158378047}}^1$

素因数の和:158378061

約数の個数: 16

約数和(自身を含む): 38010731520

約数和(自身を除く): 16629695175

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 158378047, 475134141, 791890235, 1425402423, 2375670705, 4276207269, 7127012115, 21381036345]

約数ペア:

[(1, 21381036345), (3, 7127012115), (5, 4276207269), (9, 2375670705), (15, 1425402423), (27, 791890235), (45, 475134141), (135, 158378047)]