1999257987

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{307}}^1\times {\mathrm{127691}}^1$

素因数の和:128018

約数の個数: 16

約数和(自身を含む): 2831697792

約数和(自身を除く): 832439805

約数列:

[1, 3, 17, 51, 307, 921, 5219, 15657, 127691, 383073, 2170747, 6512241, 39201137, 117603411, 666419329, 1999257987]

約数ペア:

[(1, 1999257987), (3, 666419329), (17, 117603411), (51, 39201137), (307, 6512241), (921, 2170747), (5219, 383073), (15657, 127691)]