21879810

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{243109}}^1$

素因数の和:243122

約数の個数: 24

約数和(自身を含む): 56887740

約数和(自身を除く): 35007930

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 243109, 486218, 729327, 1215545, 1458654, 2187981, 2431090, 3646635, 4375962, 7293270, 10939905, 21879810]

約数ペア:

[(1, 21879810), (2, 10939905), (3, 7293270), (5, 4375962), (6, 3646635), (9, 2431090), (10, 2187981), (15, 1458654), (18, 1215545), (30, 729327), (45, 486218), (90, 243109)]