21086426

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{14423}}^1$

素因数の和:14485

約数の個数: 16

約数和(自身を含む): 34271424

約数和(自身を除く): 13184998

約数列:

[1, 2, 17, 34, 43, 86, 731, 1462, 14423, 28846, 245191, 490382, 620189, 1240378, 10543213, 21086426]

約数ペア:

[(1, 21086426), (2, 10543213), (17, 1240378), (34, 620189), (43, 490382), (86, 245191), (731, 28846), (1462, 14423)]