21299049

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{197}}^1\times {\mathrm{293}}^1$

素因数の和:537

約数の個数: 24

約数和(自身を含む): 31783752

約数和(自身を除く): 10484703

約数列:

[1, 3, 9, 41, 123, 197, 293, 369, 591, 879, 1773, 2637, 8077, 12013, 24231, 36039, 57721, 72693, 108117, 173163, 519489, 2366561, 7099683, 21299049]

約数ペア:

[(1, 21299049), (3, 7099683), (9, 2366561), (41, 519489), (123, 173163), (197, 108117), (293, 72693), (369, 57721), (591, 36039), (879, 24231), (1773, 12013), (2637, 8077)]