18978806

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{123239}}^1$

素因数の和:123259

約数の個数: 16

約数和(自身を含む): 35493120

約数和(自身を除く): 16514314

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 123239, 246478, 862673, 1355629, 1725346, 2711258, 9489403, 18978806]

約数ペア:

[(1, 18978806), (2, 9489403), (7, 2711258), (11, 1725346), (14, 1355629), (22, 862673), (77, 246478), (154, 123239)]