21438526

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1\times {\mathrm{1151}}^1$

素因数の和:1359

約数の個数: 16

約数和(自身を含む): 32901120

約数和(自身を除く): 11462594

約数列:

[1, 2, 67, 134, 139, 278, 1151, 2302, 9313, 18626, 77117, 154234, 159989, 319978, 10719263, 21438526]

約数ペア:

[(1, 21438526), (2, 10719263), (67, 319978), (134, 159989), (139, 154234), (278, 77117), (1151, 18626), (2302, 9313)]