209445061

素因数分解:

$7^3\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{191}}^1$

素因数の和:374

約数の個数: 32

約数和(自身を含む): 258048000

約数和(自身を除く): 48602939

約数列:

[1, 7, 23, 49, 139, 161, 191, 343, 973, 1127, 1337, 3197, 4393, 6811, 7889, 9359, 22379, 26549, 30751, 47677, 65513, 156653, 185843, 215257, 610627, 1096571, 1300901, 1506799, 4274389, 9106307, 29920723, 209445061]

約数ペア:

[(1, 209445061), (7, 29920723), (23, 9106307), (49, 4274389), (139, 1506799), (161, 1300901), (191, 1096571), (343, 610627), (973, 215257), (1127, 185843), (1337, 156653), (3197, 65513), (4393, 47677), (6811, 30751), (7889, 26549), (9359, 22379)]