2220921918

素因数分解:

$2^1\times 3^2\times {\mathrm{123384551}}^1$

素因数の和:123384559

約数の個数: 12

約数和(自身を含む): 4811997528

約数和(自身を除く): 2591075610

約数列:

[1, 2, 3, 6, 9, 18, 123384551, 246769102, 370153653, 740307306, 1110460959, 2220921918]

約数ペア:

[(1, 2220921918), (2, 1110460959), (3, 740307306), (6, 370153653), (9, 246769102), (18, 123384551)]