21326224

素因数分解:

$2^4\times {\mathrm{1009}}^1\times {\mathrm{1321}}^1$

素因数の和:2338

約数の個数: 20

約数和(自身を含む): 41391820

約数和(自身を除く): 20065596

約数列:

[1, 2, 4, 8, 16, 1009, 1321, 2018, 2642, 4036, 5284, 8072, 10568, 16144, 21136, 1332889, 2665778, 5331556, 10663112, 21326224]

約数ペア:

[(1, 21326224), (2, 10663112), (4, 5331556), (8, 2665778), (16, 1332889), (1009, 21136), (1321, 16144), (2018, 10568), (2642, 8072), (4036, 5284)]