21507568

素因数分解:

$2^4\times {\mathrm{43}}^2\times {\mathrm{727}}^1$

素因数の和:821

約数の個数: 30

約数和(自身を含む): 42721224

約数和(自身を除く): 21213656

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 727, 1454, 1849, 2908, 3698, 5816, 7396, 11632, 14792, 29584, 31261, 62522, 125044, 250088, 500176, 1344223, 2688446, 5376892, 10753784, 21507568]

約数ペア:

[(1, 21507568), (2, 10753784), (4, 5376892), (8, 2688446), (16, 1344223), (43, 500176), (86, 250088), (172, 125044), (344, 62522), (688, 31261), (727, 29584), (1454, 14792), (1849, 11632), (2908, 7396), (3698, 5816)]