21434553

素因数分解:

$3^2\times 7^1\times {\mathrm{313}}^1\times {\mathrm{1087}}^1$

素因数の和:1413

約数の個数: 24

約数和(自身を含む): 35529728

約数和(自身を除く): 14095175

約数列:

[1, 3, 7, 9, 21, 63, 313, 939, 1087, 2191, 2817, 3261, 6573, 7609, 9783, 19719, 22827, 68481, 340231, 1020693, 2381617, 3062079, 7144851, 21434553]

約数ペア:

[(1, 21434553), (3, 7144851), (7, 3062079), (9, 2381617), (21, 1020693), (63, 340231), (313, 68481), (939, 22827), (1087, 19719), (2191, 9783), (2817, 7609), (3261, 6573)]