21729903

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{19213}}^1$

素因数の和:19258

約数の個数: 16

約数和(自身を含む): 32279520

約数和(自身を除く): 10549617

約数列:

[1, 3, 13, 29, 39, 87, 377, 1131, 19213, 57639, 249769, 557177, 749307, 1671531, 7243301, 21729903]

約数ペア:

[(1, 21729903), (3, 7243301), (13, 1671531), (29, 749307), (39, 557177), (87, 249769), (377, 57639), (1131, 19213)]