221344281

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{241}}^1$

素因数の和:438

約数の個数: 48

約数和(自身を含む): 348828480

約数和(自身を除く): 127484199

約数列:

[1, 3, 9, 19, 41, 57, 123, 131, 171, 241, 369, 393, 723, 779, 1179, 2169, 2337, 2489, 4579, 5371, 7011, 7467, 9881, 13737, 16113, 22401, 29643, 31571, 41211, 48339, 88929, 94713, 102049, 187739, 284139, 306147, 563217, 599849, 918441, 1294411, 1689651, 1799547, 3883233, 5398641, 11649699, 24593809, 73781427, 221344281]

約数ペア:

[(1, 221344281), (3, 73781427), (9, 24593809), (19, 11649699), (41, 5398641), (57, 3883233), (123, 1799547), (131, 1689651), (171, 1294411), (241, 918441), (369, 599849), (393, 563217), (723, 306147), (779, 284139), (1179, 187739), (2169, 102049), (2337, 94713), (2489, 88929), (4579, 48339), (5371, 41211), (7011, 31571), (7467, 29643), (9881, 22401), (13737, 16113)]