218361213

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{1117}}^1$

素因数の和:1266

約数の個数: 48

約数和(自身を含む): 376721280

約数和(自身を除く): 158360067

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 107, 203, 261, 321, 609, 749, 963, 1117, 1827, 2247, 3103, 3351, 6741, 7819, 9309, 10053, 21721, 23457, 27927, 32393, 65163, 70371, 97179, 119519, 195489, 226751, 291537, 358557, 680253, 836633, 1075671, 2040759, 2509899, 3466051, 7529697, 10398153, 24262357, 31194459, 72787071, 218361213]

約数ペア:

[(1, 218361213), (3, 72787071), (7, 31194459), (9, 24262357), (21, 10398153), (29, 7529697), (63, 3466051), (87, 2509899), (107, 2040759), (203, 1075671), (261, 836633), (321, 680253), (609, 358557), (749, 291537), (963, 226751), (1117, 195489), (1827, 119519), (2247, 97179), (3103, 70371), (3351, 65163), (6741, 32393), (7819, 27927), (9309, 23457), (10053, 21721)]