21781434

素因数分解:

$2^1\times 3^1\times {\mathrm{281}}^1\times {\mathrm{12919}}^1$

素因数の和:13205

約数の個数: 16

約数和(自身を含む): 43721280

約数和(自身を除く): 21939846

約数列:

[1, 2, 3, 6, 281, 562, 843, 1686, 12919, 25838, 38757, 77514, 3630239, 7260478, 10890717, 21781434]

約数ペア:

[(1, 21781434), (2, 10890717), (3, 7260478), (6, 3630239), (281, 77514), (562, 38757), (843, 25838), (1686, 12919)]