21940016

素因数分解:

$2^4\times 7^1\times {\mathrm{195893}}^1$

素因数の和:195908

約数の個数: 20

約数和(自身を含む): 48581712

約数和(自身を除く): 26641696

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 195893, 391786, 783572, 1371251, 1567144, 2742502, 3134288, 5485004, 10970008, 21940016]

約数ペア:

[(1, 21940016), (2, 10970008), (4, 5485004), (7, 3134288), (8, 2742502), (14, 1567144), (16, 1371251), (28, 783572), (56, 391786), (112, 195893)]