187890339

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{2213}}^1$

素因数の和:2547

約数の個数: 32

約数和(自身を含む): 309464064

約数和(自身を除く): 121573725

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 311, 933, 2177, 2213, 4043, 6531, 6639, 12129, 15491, 28301, 28769, 46473, 84903, 86307, 201383, 604149, 688243, 2064729, 4817701, 8947159, 14453103, 26841477, 62630113, 187890339]

約数ペア:

[(1, 187890339), (3, 62630113), (7, 26841477), (13, 14453103), (21, 8947159), (39, 4817701), (91, 2064729), (273, 688243), (311, 604149), (933, 201383), (2177, 86307), (2213, 84903), (4043, 46473), (6531, 28769), (6639, 28301), (12129, 15491)]