20489415

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{29063}}^1$

素因数の和:29118

約数の個数: 16

約数和(自身を含む): 33481728

約数和(自身を除く): 12992313

約数列:

[1, 3, 5, 15, 47, 141, 235, 705, 29063, 87189, 145315, 435945, 1365961, 4097883, 6829805, 20489415]

約数ペア:

[(1, 20489415), (3, 6829805), (5, 4097883), (15, 1365961), (47, 435945), (141, 145315), (235, 87189), (705, 29063)]