19808510

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{15121}}^1$

素因数の和:15259

約数の個数: 16

約数和(自身を含む): 35929872

約数和(自身を除く): 16121362

約数列:

[1, 2, 5, 10, 131, 262, 655, 1310, 15121, 30242, 75605, 151210, 1980851, 3961702, 9904255, 19808510]

約数ペア:

[(1, 19808510), (2, 9904255), (5, 3961702), (10, 1980851), (131, 151210), (262, 75605), (655, 30242), (1310, 15121)]