19978804365

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{102455407}}^1$

素因数の和:102455428

約数の個数: 16

約数和(自身を含む): 34425017088

約数和(自身を除く): 14446212723

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 102455407, 307366221, 512277035, 1331920291, 1536831105, 3995760873, 6659601455, 19978804365]

約数ペア:

[(1, 19978804365), (3, 6659601455), (5, 3995760873), (13, 1536831105), (15, 1331920291), (39, 512277035), (65, 307366221), (195, 102455407)]