216638191

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{359}}^1\times {\mathrm{461}}^1$

素因数の和:855

約数の個数: 32

約数和(自身を含む): 287400960

約数和(自身を除く): 70762769

約数列:

[1, 7, 11, 17, 77, 119, 187, 359, 461, 1309, 2513, 3227, 3949, 5071, 6103, 7837, 27643, 35497, 42721, 54859, 67133, 86207, 165499, 469931, 603449, 1158493, 1820489, 2813483, 12743423, 19694381, 30948313, 216638191]

約数ペア:

[(1, 216638191), (7, 30948313), (11, 19694381), (17, 12743423), (77, 2813483), (119, 1820489), (187, 1158493), (359, 603449), (461, 469931), (1309, 165499), (2513, 86207), (3227, 67133), (3949, 54859), (5071, 42721), (6103, 35497), (7837, 27643)]