20491485

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{195157}}^1$

素因数の和:195172

約数の個数: 16

約数和(自身を含む): 37470336

約数和(自身を除く): 16978851

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 195157, 585471, 975785, 1366099, 2927355, 4098297, 6830495, 20491485]

約数ペア:

[(1, 20491485), (3, 6830495), (5, 4098297), (7, 2927355), (15, 1366099), (21, 975785), (35, 585471), (105, 195157)]