21143564

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{1447}}^1$

素因数の和:1745

約数の個数: 24

約数和(自身を含む): 40016928

約数和(自身を除く): 18873364

約数列:

[1, 2, 4, 13, 26, 52, 281, 562, 1124, 1447, 2894, 3653, 5788, 7306, 14612, 18811, 37622, 75244, 406607, 813214, 1626428, 5285891, 10571782, 21143564]

約数ペア:

[(1, 21143564), (2, 10571782), (4, 5285891), (13, 1626428), (26, 813214), (52, 406607), (281, 75244), (562, 37622), (1124, 18811), (1447, 14612), (2894, 7306), (3653, 5788)]