21491364

素因数分解:

$2^2\times 3^1\times {\mathrm{89}}^1\times {\mathrm{20123}}^1$

素因数の和:20219

約数の個数: 24

約数和(自身を含む): 50712480

約数和(自身を除く): 29221116

約数列:

[1, 2, 3, 4, 6, 12, 89, 178, 267, 356, 534, 1068, 20123, 40246, 60369, 80492, 120738, 241476, 1790947, 3581894, 5372841, 7163788, 10745682, 21491364]

約数ペア:

[(1, 21491364), (2, 10745682), (3, 7163788), (4, 5372841), (6, 3581894), (12, 1790947), (89, 241476), (178, 120738), (267, 80492), (356, 60369), (534, 40246), (1068, 20123)]