19491490

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{14879}}^1$

素因数の和:15017

約数の個数: 16

約数和(自身を含む): 35354880

約数和(自身を除く): 15863390

約数列:

[1, 2, 5, 10, 131, 262, 655, 1310, 14879, 29758, 74395, 148790, 1949149, 3898298, 9745745, 19491490]

約数ペア:

[(1, 19491490), (2, 9745745), (5, 3898298), (10, 1949149), (131, 148790), (262, 74395), (655, 29758), (1310, 14879)]