21167704

素因数分解:

$2^3\times {\mathrm{1321}}^1\times {\mathrm{2003}}^1$

素因数の和:3330

約数の個数: 16

約数和(自身を含む): 39739320

約数和(自身を除く): 18571616

約数列:

[1, 2, 4, 8, 1321, 2003, 2642, 4006, 5284, 8012, 10568, 16024, 2645963, 5291926, 10583852, 21167704]

約数ペア:

[(1, 21167704), (2, 10583852), (4, 5291926), (8, 2645963), (1321, 16024), (2003, 10568), (2642, 8012), (4006, 5284)]