21277795

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{3251}}^1$

素因数の和:3291

約数の個数: 32

約数和(自身を含む): 33716736

約数和(自身を除く): 12438941

約数列:

[1, 5, 7, 11, 17, 35, 55, 77, 85, 119, 187, 385, 595, 935, 1309, 3251, 6545, 16255, 22757, 35761, 55267, 113785, 178805, 250327, 276335, 386869, 607937, 1251635, 1934345, 3039685, 4255559, 21277795]

約数ペア:

[(1, 21277795), (5, 4255559), (7, 3039685), (11, 1934345), (17, 1251635), (35, 607937), (55, 386869), (77, 276335), (85, 250327), (119, 178805), (187, 113785), (385, 55267), (595, 35761), (935, 22757), (1309, 16255), (3251, 6545)]