21421336

素因数分解:

$2^3\times {\mathrm{1321}}^1\times {\mathrm{2027}}^1$

素因数の和:3354

約数の個数: 16

約数和(自身を含む): 40215240

約数和(自身を除く): 18793904

約数列:

[1, 2, 4, 8, 1321, 2027, 2642, 4054, 5284, 8108, 10568, 16216, 2677667, 5355334, 10710668, 21421336]

約数ペア:

[(1, 21421336), (2, 10710668), (4, 5355334), (8, 2677667), (1321, 16216), (2027, 10568), (2642, 8108), (4054, 5284)]