21931455

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{16067}}^1$

素因数の和:16095

約数の個数: 32

約数和(自身を含む): 43190784

約数和(自身を除く): 21259329

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365, 16067, 48201, 80335, 112469, 208871, 241005, 337407, 562345, 626613, 1044355, 1462097, 1687035, 3133065, 4386291, 7310485, 21931455]

約数ペア:

[(1, 21931455), (3, 7310485), (5, 4386291), (7, 3133065), (13, 1687035), (15, 1462097), (21, 1044355), (35, 626613), (39, 562345), (65, 337407), (91, 241005), (105, 208871), (195, 112469), (273, 80335), (455, 48201), (1365, 16067)]